Home / 753,892.92-1,040,380.27-409,728.85

Finding the Fourth Proportional to 753,892.92, 1,040,380.27 and 409,728.85

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Solution

The fourth proportional to 753,892.92, 1,040,380.27 and 409,728.85 is: 565,430.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,892.92 : 1,040,380.27 = 409,728.85 : x
  2. Step 2: Convert to fraction form
    753,892.92/1,040,380.27 = 409,728.85/x
  3. Step 3: Cross multiply
    753,892.92x = 1,040,380.27 × 409,728.85
  4. Step 4: Simplify right side
    753,892.92x = 426,273,807,964.52
  5. Step 5: Solve for x
    x = 426,273,807,964.52/753,892.92
  6. Step 6: Final answer
    x = 565,430.18

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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.