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Finding the Fourth Proportional to 669.52, 1,002.90 and 592.68

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Solution

The fourth proportional to 669.52, 1,002.90 and 592.68 is: 887.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    669.52 : 1,002.90 = 592.68 : x
  2. Step 2: Convert to fraction form
    669.52/1,002.90 = 592.68/x
  3. Step 3: Cross multiply
    669.52x = 1,002.90 × 592.68
  4. Step 4: Simplify right side
    669.52x = 594,398.77
  5. Step 5: Solve for x
    x = 594,398.77/669.52
  6. Step 6: Final answer
    x = 887.80

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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.