Home / 454,426.20-681,639.30-384,442.20

Finding the Fourth Proportional to 454,426.20, 681,639.30 and 384,442.20

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Solution

The fourth proportional to 454,426.20, 681,639.30 and 384,442.20 is: 576,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,426.20 : 681,639.30 = 384,442.20 : x
  2. Step 2: Convert to fraction form
    454,426.20/681,639.30 = 384,442.20/x
  3. Step 3: Cross multiply
    454,426.20x = 681,639.30 × 384,442.20
  4. Step 4: Simplify right side
    454,426.20x = 262,050,912,098.46
  5. Step 5: Solve for x
    x = 262,050,912,098.46/454,426.20
  6. Step 6: Final answer
    x = 576,663.30

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Double scale
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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.