Home / 661,820.96-913,512.59-572,140.29

Finding the Fourth Proportional to 661,820.96, 913,512.59 and 572,140.29

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Solution

The fourth proportional to 661,820.96, 913,512.59 and 572,140.29 is: 789,726.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,820.96 : 913,512.59 = 572,140.29 : x
  2. Step 2: Convert to fraction form
    661,820.96/913,512.59 = 572,140.29/x
  3. Step 3: Cross multiply
    661,820.96x = 913,512.59 × 572,140.29
  4. Step 4: Simplify right side
    661,820.96x = 522,657,360,871.75
  5. Step 5: Solve for x
    x = 522,657,360,871.75/661,820.96
  6. Step 6: Final answer
    x = 789,726.21

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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.