Home / 661,822.96-913,515.35-572,142.29

Finding the Fourth Proportional to 661,822.96, 913,515.35 and 572,142.29

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Solution

The fourth proportional to 661,822.96, 913,515.35 and 572,142.29 is: 789,728.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,822.96 : 913,515.35 = 572,142.29 : x
  2. Step 2: Convert to fraction form
    661,822.96/913,515.35 = 572,142.29/x
  3. Step 3: Cross multiply
    661,822.96x = 913,515.35 × 572,142.29
  4. Step 4: Simplify right side
    661,822.96x = 522,660,764,299.15
  5. Step 5: Solve for x
    x = 522,660,764,299.15/661,822.96
  6. Step 6: Final answer
    x = 789,728.97

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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.