Home / 913,721.46-1,260,950.50-500,251.28

Finding the Fourth Proportional to 913,721.46, 1,260,950.50 and 500,251.28

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Solution

The fourth proportional to 913,721.46, 1,260,950.50 and 500,251.28 is: 690,354.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,721.46 : 1,260,950.50 = 500,251.28 : x
  2. Step 2: Convert to fraction form
    913,721.46/1,260,950.50 = 500,251.28/x
  3. Step 3: Cross multiply
    913,721.46x = 1,260,950.50 × 500,251.28
  4. Step 4: Simplify right side
    913,721.46x = 630,792,101,641.64
  5. Step 5: Solve for x
    x = 630,792,101,641.64/913,721.46
  6. Step 6: Final answer
    x = 690,354.92

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Double scale
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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.