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Finding the Fourth Proportional to 543,752.72, 816,127.20 and 291,318.20

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Solution

The fourth proportional to 543,752.72, 816,127.20 and 291,318.20 is: 437,244.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,752.72 : 816,127.20 = 291,318.20 : x
  2. Step 2: Convert to fraction form
    543,752.72/816,127.20 = 291,318.20/x
  3. Step 3: Cross multiply
    543,752.72x = 816,127.20 × 291,318.20
  4. Step 4: Simplify right side
    543,752.72x = 237,752,706,875.04
  5. Step 5: Solve for x
    x = 237,752,706,875.04/543,752.72
  6. Step 6: Final answer
    x = 437,244.17

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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.