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Finding the Fourth Proportional to 677.28, 932.76 and 552.36

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Solution

The fourth proportional to 677.28, 932.76 and 552.36 is: 760.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.28 : 932.76 = 552.36 : x
  2. Step 2: Convert to fraction form
    677.28/932.76 = 552.36/x
  3. Step 3: Cross multiply
    677.28x = 932.76 × 552.36
  4. Step 4: Simplify right side
    677.28x = 515,219.31
  5. Step 5: Solve for x
    x = 515,219.31/677.28
  6. Step 6: Final answer
    x = 760.72

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Double scale
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1.5x scale

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.