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Finding the Fourth Proportional to 598,720.80, 826,325.52 and 372,439.20

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Solution

The fourth proportional to 598,720.80, 826,325.52 and 372,439.20 is: 514,022.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,720.80 : 826,325.52 = 372,439.20 : x
  2. Step 2: Convert to fraction form
    598,720.80/826,325.52 = 372,439.20/x
  3. Step 3: Cross multiply
    598,720.80x = 826,325.52 × 372,439.20
  4. Step 4: Simplify right side
    598,720.80x = 307,756,015,608.38
  5. Step 5: Solve for x
    x = 307,756,015,608.38/598,720.80
  6. Step 6: Final answer
    x = 514,022.59

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Double scale
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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.