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Finding the Fourth Proportional to 659,613.71, 989,565.66 and 375,437.97

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Solution

The fourth proportional to 659,613.71, 989,565.66 and 375,437.97 is: 563,239.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,613.71 : 989,565.66 = 375,437.97 : x
  2. Step 2: Convert to fraction form
    659,613.71/989,565.66 = 375,437.97/x
  3. Step 3: Cross multiply
    659,613.71x = 989,565.66 × 375,437.97
  4. Step 4: Simplify right side
    659,613.71x = 371,520,522,572.11
  5. Step 5: Solve for x
    x = 371,520,522,572.11/659,613.71
  6. Step 6: Final answer
    x = 563,239.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.