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Finding the Fourth Proportional to 442,532.39, 610,791.40 and 281,355.96

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Solution

The fourth proportional to 442,532.39, 610,791.40 and 281,355.96 is: 388,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,532.39 : 610,791.40 = 281,355.96 : x
  2. Step 2: Convert to fraction form
    442,532.39/610,791.40 = 281,355.96/x
  3. Step 3: Cross multiply
    442,532.39x = 610,791.40 × 281,355.96
  4. Step 4: Simplify right side
    442,532.39x = 171,849,797,008.38
  5. Step 5: Solve for x
    x = 171,849,797,008.38/442,532.39
  6. Step 6: Final answer
    x = 388,332.70

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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.