Home / 868,451.91-1,198,475.64-500,921.70

Finding the Fourth Proportional to 868,451.91, 1,198,475.64 and 500,921.70

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Solution

The fourth proportional to 868,451.91, 1,198,475.64 and 500,921.70 is: 691,278.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,451.91 : 1,198,475.64 = 500,921.70 : x
  2. Step 2: Convert to fraction form
    868,451.91/1,198,475.64 = 500,921.70/x
  3. Step 3: Cross multiply
    868,451.91x = 1,198,475.64 × 500,921.70
  4. Step 4: Simplify right side
    868,451.91x = 600,342,454,997.39
  5. Step 5: Solve for x
    x = 600,342,454,997.39/868,451.91
  6. Step 6: Final answer
    x = 691,278.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.