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Finding the Fourth Proportional to 522,453.38, 720,318.19 and 338,366.72

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Solution

The fourth proportional to 522,453.38, 720,318.19 and 338,366.72 is: 466,513.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,453.38 : 720,318.19 = 338,366.72 : x
  2. Step 2: Convert to fraction form
    522,453.38/720,318.19 = 338,366.72/x
  3. Step 3: Cross multiply
    522,453.38x = 720,318.19 × 338,366.72
  4. Step 4: Simplify right side
    522,453.38x = 243,731,703,306.64
  5. Step 5: Solve for x
    x = 243,731,703,306.64/522,453.38
  6. Step 6: Final answer
    x = 466,513.78

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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.