Home / 986,612.40-1,479,481.20-454,296.60

Finding the Fourth Proportional to 986,612.40, 1,479,481.20 and 454,296.60

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Solution

The fourth proportional to 986,612.40, 1,479,481.20 and 454,296.60 is: 681,243.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,612.40 : 1,479,481.20 = 454,296.60 : x
  2. Step 2: Convert to fraction form
    986,612.40/1,479,481.20 = 454,296.60/x
  3. Step 3: Cross multiply
    986,612.40x = 1,479,481.20 × 454,296.60
  4. Step 4: Simplify right side
    986,612.40x = 672,123,278,923.92
  5. Step 5: Solve for x
    x = 672,123,278,923.92/986,612.40
  6. Step 6: Final answer
    x = 681,243.49

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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.