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Finding the Fourth Proportional to 526,434.28, 726,479.28 and 284,716.85

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Solution

The fourth proportional to 526,434.28, 726,479.28 and 284,716.85 is: 392,909.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,434.28 : 726,479.28 = 284,716.85 : x
  2. Step 2: Convert to fraction form
    526,434.28/726,479.28 = 284,716.85/x
  3. Step 3: Cross multiply
    526,434.28x = 726,479.28 × 284,716.85
  4. Step 4: Simplify right side
    526,434.28x = 206,840,888,559.47
  5. Step 5: Solve for x
    x = 206,840,888,559.47/526,434.28
  6. Step 6: Final answer
    x = 392,909.23

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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.