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Finding the Fourth Proportional to 672.04, 1,006.98 and 527.32

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Solution

The fourth proportional to 672.04, 1,006.98 and 527.32 is: 790.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.04 : 1,006.98 = 527.32 : x
  2. Step 2: Convert to fraction form
    672.04/1,006.98 = 527.32/x
  3. Step 3: Cross multiply
    672.04x = 1,006.98 × 527.32
  4. Step 4: Simplify right side
    672.04x = 531,000.69
  5. Step 5: Solve for x
    x = 531,000.69/672.04
  6. Step 6: Final answer
    x = 790.13

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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.