Home / 728,441.55-1,002,961.85-619,331.31

Finding the Fourth Proportional to 728,441.55, 1,002,961.85 and 619,331.31

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Solution

The fourth proportional to 728,441.55, 1,002,961.85 and 619,331.31 is: 852,732.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,441.55 : 1,002,961.85 = 619,331.31 : x
  2. Step 2: Convert to fraction form
    728,441.55/1,002,961.85 = 619,331.31/x
  3. Step 3: Cross multiply
    728,441.55x = 1,002,961.85 × 619,331.31
  4. Step 4: Simplify right side
    728,441.55x = 621,165,673,343.87
  5. Step 5: Solve for x
    x = 621,165,673,343.87/728,441.55
  6. Step 6: Final answer
    x = 852,732.35

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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.