Home / 1,298,614.40-1,947,921.60-457,251.20

Finding the Fourth Proportional to 1,298,614.40, 1,947,921.60 and 457,251.20

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Solution

The fourth proportional to 1,298,614.40, 1,947,921.60 and 457,251.20 is: 685,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,614.40 : 1,947,921.60 = 457,251.20 : x
  2. Step 2: Convert to fraction form
    1,298,614.40/1,947,921.60 = 457,251.20/x
  3. Step 3: Cross multiply
    1,298,614.40x = 1,947,921.60 × 457,251.20
  4. Step 4: Simplify right side
    1,298,614.40x = 890,689,489,105.92
  5. Step 5: Solve for x
    x = 890,689,489,105.92/1,298,614.40
  6. Step 6: Final answer
    x = 685,876.80

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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.