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Finding the Fourth Proportional to 706.88, 972.88 and 566.52

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Solution

The fourth proportional to 706.88, 972.88 and 566.52 is: 779.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.88 : 972.88 = 566.52 : x
  2. Step 2: Convert to fraction form
    706.88/972.88 = 566.52/x
  3. Step 3: Cross multiply
    706.88x = 972.88 × 566.52
  4. Step 4: Simplify right side
    706.88x = 551,155.98
  5. Step 5: Solve for x
    x = 551,155.98/706.88
  6. Step 6: Final answer
    x = 779.70

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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.