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Finding the Fourth Proportional to 704.87, 972.32 and 424.95

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Solution

The fourth proportional to 704.87, 972.32 and 424.95 is: 586.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.87 : 972.32 = 424.95 : x
  2. Step 2: Convert to fraction form
    704.87/972.32 = 424.95/x
  3. Step 3: Cross multiply
    704.87x = 972.32 × 424.95
  4. Step 4: Simplify right side
    704.87x = 413,184.90
  5. Step 5: Solve for x
    x = 413,184.90/704.87
  6. Step 6: Final answer
    x = 586.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.