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Finding the Fourth Proportional to 632.69, 947.57 and 610.80

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Solution

The fourth proportional to 632.69, 947.57 and 610.80 is: 914.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.69 : 947.57 = 610.80 : x
  2. Step 2: Convert to fraction form
    632.69/947.57 = 610.80/x
  3. Step 3: Cross multiply
    632.69x = 947.57 × 610.80
  4. Step 4: Simplify right side
    632.69x = 578,772.70
  5. Step 5: Solve for x
    x = 578,772.70/632.69
  6. Step 6: Final answer
    x = 914.79

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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.