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Finding the Fourth Proportional to 1,002.62, 1,503.16 and 482.70

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Solution

The fourth proportional to 1,002.62, 1,503.16 and 482.70 is: 723.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002.62 : 1,503.16 = 482.70 : x
  2. Step 2: Convert to fraction form
    1,002.62/1,503.16 = 482.70/x
  3. Step 3: Cross multiply
    1,002.62x = 1,503.16 × 482.70
  4. Step 4: Simplify right side
    1,002.62x = 725,575.33
  5. Step 5: Solve for x
    x = 725,575.33/1,002.62
  6. Step 6: Final answer
    x = 723.68

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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.