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Finding the Fourth Proportional to 656.46, 986.04 and 634.59

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Solution

The fourth proportional to 656.46, 986.04 and 634.59 is: 953.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.46 : 986.04 = 634.59 : x
  2. Step 2: Convert to fraction form
    656.46/986.04 = 634.59/x
  3. Step 3: Cross multiply
    656.46x = 986.04 × 634.59
  4. Step 4: Simplify right side
    656.46x = 625,731.12
  5. Step 5: Solve for x
    x = 625,731.12/656.46
  6. Step 6: Final answer
    x = 953.19

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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.