Home / 918,732.06-1,378,098.21-287,695.14

Finding the Fourth Proportional to 918,732.06, 1,378,098.21 and 287,695.14

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Solution

The fourth proportional to 918,732.06, 1,378,098.21 and 287,695.14 is: 431,542.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,732.06 : 1,378,098.21 = 287,695.14 : x
  2. Step 2: Convert to fraction form
    918,732.06/1,378,098.21 = 287,695.14/x
  3. Step 3: Cross multiply
    918,732.06x = 1,378,098.21 × 287,695.14
  4. Step 4: Simplify right side
    918,732.06x = 396,472,157,459.70
  5. Step 5: Solve for x
    x = 396,472,157,459.70/918,732.06
  6. Step 6: Final answer
    x = 431,542.75

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Similar ratio
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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.