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Finding the Fourth Proportional to 924.52, 1,387.14 and 437.98

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Solution

The fourth proportional to 924.52, 1,387.14 and 437.98 is: 657.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.52 : 1,387.14 = 437.98 : x
  2. Step 2: Convert to fraction form
    924.52/1,387.14 = 437.98/x
  3. Step 3: Cross multiply
    924.52x = 1,387.14 × 437.98
  4. Step 4: Simplify right side
    924.52x = 607,539.58
  5. Step 5: Solve for x
    x = 607,539.58/924.52
  6. Step 6: Final answer
    x = 657.14

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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.