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Finding the Fourth Proportional to 574,498.11, 861,883.85 and 289,488.27

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Solution

The fourth proportional to 574,498.11, 861,883.85 and 289,488.27 is: 434,301.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,498.11 : 861,883.85 = 289,488.27 : x
  2. Step 2: Convert to fraction form
    574,498.11/861,883.85 = 289,488.27/x
  3. Step 3: Cross multiply
    574,498.11x = 861,883.85 × 289,488.27
  4. Step 4: Simplify right side
    574,498.11x = 249,505,265,401.16
  5. Step 5: Solve for x
    x = 249,505,265,401.16/574,498.11
  6. Step 6: Final answer
    x = 434,301.28

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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.