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Finding the Fourth Proportional to 539,875.72, 744,579.30 and 404,229.88

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Solution

The fourth proportional to 539,875.72, 744,579.30 and 404,229.88 is: 557,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,875.72 : 744,579.30 = 404,229.88 : x
  2. Step 2: Convert to fraction form
    539,875.72/744,579.30 = 404,229.88/x
  3. Step 3: Cross multiply
    539,875.72x = 744,579.30 × 404,229.88
  4. Step 4: Simplify right side
    539,875.72x = 300,981,201,089.48
  5. Step 5: Solve for x
    x = 300,981,201,089.48/539,875.72
  6. Step 6: Final answer
    x = 557,500.90

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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.