Finding the Fourth Proportional to 867,857,395.95, 1,197,658,983.87 and 491,592,106.26
Calculator
Solution
The fourth proportional to 867,857,395.95, 1,197,658,983.87 and 491,592,106.26 is: 678,406,043.68
Step by Step Solution
- Step 1: Write the proportion equation
867,857,395.95 : 1,197,658,983.87 = 491,592,106.26 : x - Step 2: Convert to fraction form
867,857,395.95/1,197,658,983.87 = 491,592,106.26/x - Step 3: Cross multiply
867,857,395.95x = 1,197,658,983.87 × 491,592,106.26 - Step 4: Simplify right side
867,857,395.95x = 588,759,702,461,864,576 - Step 5: Solve for x
x = 588,759,702,461,864,576/867,857,395.95 - Step 6: Final answer
x = 678,406,043.68
Related Problems
Find fourth proportional to 433,928,697.98, 598,829,491.94 and 245,796,053.13
Half scale
Find fourth proportional to 1,735,714,791.90, 2,395,317,967.74 and 983,184,212.52
Double scale
Find fourth proportional to 867,857,396.95, 1,197,658,985.25 and 491,592,107.26
Similar ratio
Find fourth proportional to 1,301,786,093.93, 1,796,488,475.81 and 737,388,159.39
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.