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Finding the Fourth Proportional to 707.76, 1,060.25 and 463.55

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Solution

The fourth proportional to 707.76, 1,060.25 and 463.55 is: 694.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.76 : 1,060.25 = 463.55 : x
  2. Step 2: Convert to fraction form
    707.76/1,060.25 = 463.55/x
  3. Step 3: Cross multiply
    707.76x = 1,060.25 × 463.55
  4. Step 4: Simplify right side
    707.76x = 491,474.75
  5. Step 5: Solve for x
    x = 491,474.75/707.76
  6. Step 6: Final answer
    x = 694.41

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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.