Finding the Fourth Proportional to 1,577,011.28, 2,365,534.20 and 455,090
Calculator
Solution
The fourth proportional to 1,577,011.28, 2,365,534.20 and 455,090 is: 682,639.99
Step by Step Solution
- Step 1: Write the proportion equation
1,577,011.28 : 2,365,534.20 = 455,090 : x - Step 2: Convert to fraction form
1,577,011.28/2,365,534.20 = 455,090/x - Step 3: Cross multiply
1,577,011.28x = 2,365,534.20 × 455,090 - Step 4: Simplify right side
1,577,011.28x = 1,076,530,959,078.00 - Step 5: Solve for x
x = 1,076,530,959,078.00/1,577,011.28 - Step 6: Final answer
x = 682,639.99
Related Problems
Find fourth proportional to 788,505.64, 1,182,767.10 and 227,545
Half scale
Find fourth proportional to 3,154,022.56, 4,731,068.40 and 910,180
Double scale
Find fourth proportional to 1,577,012.28, 2,365,535.70 and 455,091
Similar ratio
Find fourth proportional to 2,365,516.92, 3,548,301.30 and 682,635
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.