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Finding the Fourth Proportional to 1,001.46, 1,502.22 and 423.93

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Solution

The fourth proportional to 1,001.46, 1,502.22 and 423.93 is: 635.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001.46 : 1,502.22 = 423.93 : x
  2. Step 2: Convert to fraction form
    1,001.46/1,502.22 = 423.93/x
  3. Step 3: Cross multiply
    1,001.46x = 1,502.22 × 423.93
  4. Step 4: Simplify right side
    1,001.46x = 636,836.12
  5. Step 5: Solve for x
    x = 636,836.12/1,001.46
  6. Step 6: Final answer
    x = 635.91

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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.