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Finding the Fourth Proportional to 487,459.08, 672,665.62 and 269,654.76

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Solution

The fourth proportional to 487,459.08, 672,665.62 and 269,654.76 is: 372,108.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,459.08 : 672,665.62 = 269,654.76 : x
  2. Step 2: Convert to fraction form
    487,459.08/672,665.62 = 269,654.76/x
  3. Step 3: Cross multiply
    487,459.08x = 672,665.62 × 269,654.76
  4. Step 4: Simplify right side
    487,459.08x = 181,387,486,321.35
  5. Step 5: Solve for x
    x = 181,387,486,321.35/487,459.08
  6. Step 6: Final answer
    x = 372,108.13

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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.