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Finding the Fourth Proportional to 498,836.40, 748,254.60 and 341,372.40

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Solution

The fourth proportional to 498,836.40, 748,254.60 and 341,372.40 is: 512,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,836.40 : 748,254.60 = 341,372.40 : x
  2. Step 2: Convert to fraction form
    498,836.40/748,254.60 = 341,372.40/x
  3. Step 3: Cross multiply
    498,836.40x = 748,254.60 × 341,372.40
  4. Step 4: Simplify right side
    498,836.40x = 255,433,468,613.04
  5. Step 5: Solve for x
    x = 255,433,468,613.04/498,836.40
  6. Step 6: Final answer
    x = 512,058.60

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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.