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Finding the Fourth Proportional to 539,122.26, 743,988.72 and 297,405.42

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Solution

The fourth proportional to 539,122.26, 743,988.72 and 297,405.42 is: 410,419.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,122.26 : 743,988.72 = 297,405.42 : x
  2. Step 2: Convert to fraction form
    539,122.26/743,988.72 = 297,405.42/x
  3. Step 3: Cross multiply
    539,122.26x = 743,988.72 × 297,405.42
  4. Step 4: Simplify right side
    539,122.26x = 221,266,277,746.86
  5. Step 5: Solve for x
    x = 221,266,277,746.86/539,122.26
  6. Step 6: Final answer
    x = 410,419.48

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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.