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Finding the Fourth Proportional to 574,278.40, 861,417.60 and 200,301.40

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Solution

The fourth proportional to 574,278.40, 861,417.60 and 200,301.40 is: 300,452.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,278.40 : 861,417.60 = 200,301.40 : x
  2. Step 2: Convert to fraction form
    574,278.40/861,417.60 = 200,301.40/x
  3. Step 3: Cross multiply
    574,278.40x = 861,417.60 × 200,301.40
  4. Step 4: Simplify right side
    574,278.40x = 172,543,151,264.64
  5. Step 5: Solve for x
    x = 172,543,151,264.64/574,278.40
  6. Step 6: Final answer
    x = 300,452.10

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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.