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Finding the Fourth Proportional to 925.97, 1,388.27 and 463.50

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Solution

The fourth proportional to 925.97, 1,388.27 and 463.50 is: 694.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.97 : 1,388.27 = 463.50 : x
  2. Step 2: Convert to fraction form
    925.97/1,388.27 = 463.50/x
  3. Step 3: Cross multiply
    925.97x = 1,388.27 × 463.50
  4. Step 4: Simplify right side
    925.97x = 643,460.83
  5. Step 5: Solve for x
    x = 643,460.83/925.97
  6. Step 6: Final answer
    x = 694.91

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Half scale
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Double scale
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1.5x scale

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.