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Finding the Fourth Proportional to 647.49, 966.84 and 532.17

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Solution

The fourth proportional to 647.49, 966.84 and 532.17 is: 794.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    647.49 : 966.84 = 532.17 : x
  2. Step 2: Convert to fraction form
    647.49/966.84 = 532.17/x
  3. Step 3: Cross multiply
    647.49x = 966.84 × 532.17
  4. Step 4: Simplify right side
    647.49x = 514,521.25
  5. Step 5: Solve for x
    x = 514,521.25/647.49
  6. Step 6: Final answer
    x = 794.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.