Finding the Fourth Proportional to 970,216.84, 1,338,840.93 and 540,420.31
Calculator
Solution
The fourth proportional to 970,216.84, 1,338,840.93 and 540,420.31 is: 745,747.55
Step by Step Solution
- Step 1: Write the proportion equation
970,216.84 : 1,338,840.93 = 540,420.31 : x - Step 2: Convert to fraction form
970,216.84/1,338,840.93 = 540,420.31/x - Step 3: Cross multiply
970,216.84x = 1,338,840.93 × 540,420.31 - Step 4: Simplify right side
970,216.84x = 723,536,830,431.29 - Step 5: Solve for x
x = 723,536,830,431.29/970,216.84 - Step 6: Final answer
x = 745,747.55
Related Problems
Find fourth proportional to 485,108.42, 669,420.47 and 270,210.16
Half scale
Find fourth proportional to 1,940,433.68, 2,677,681.86 and 1,080,840.62
Double scale
Find fourth proportional to 970,217.84, 1,338,842.31 and 540,421.31
Similar ratio
Find fourth proportional to 1,455,325.26, 2,008,261.40 and 810,630.47
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.