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Finding the Fourth Proportional to 925.49, 1,387.83 and 463.49

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Solution

The fourth proportional to 925.49, 1,387.83 and 463.49 is: 695.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.49 : 1,387.83 = 463.49 : x
  2. Step 2: Convert to fraction form
    925.49/1,387.83 = 463.49/x
  3. Step 3: Cross multiply
    925.49x = 1,387.83 × 463.49
  4. Step 4: Simplify right side
    925.49x = 643,245.33
  5. Step 5: Solve for x
    x = 643,245.33/925.49
  6. Step 6: Final answer
    x = 695.03

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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.