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Finding the Fourth Proportional to 868,487.32, 1,198,515.32 and 481,309.08

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Solution

The fourth proportional to 868,487.32, 1,198,515.32 and 481,309.08 is: 664,208.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,487.32 : 1,198,515.32 = 481,309.08 : x
  2. Step 2: Convert to fraction form
    868,487.32/1,198,515.32 = 481,309.08/x
  3. Step 3: Cross multiply
    868,487.32x = 1,198,515.32 × 481,309.08
  4. Step 4: Simplify right side
    868,487.32x = 576,856,306,035.11
  5. Step 5: Solve for x
    x = 576,856,306,035.11/868,487.32
  6. Step 6: Final answer
    x = 664,208.09

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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.