Home / 454,456.10-680,906.55-288,049.70

Finding the Fourth Proportional to 454,456.10, 680,906.55 and 288,049.70

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Solution

The fourth proportional to 454,456.10, 680,906.55 and 288,049.70 is: 431,581.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,456.10 : 680,906.55 = 288,049.70 : x
  2. Step 2: Convert to fraction form
    454,456.10/680,906.55 = 288,049.70/x
  3. Step 3: Cross multiply
    454,456.10x = 680,906.55 × 288,049.70
  4. Step 4: Simplify right side
    454,456.10x = 196,134,927,455.54
  5. Step 5: Solve for x
    x = 196,134,927,455.54/454,456.10
  6. Step 6: Final answer
    x = 431,581.68

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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.