Home / 487,064.59-672,169.89-272,204.65

Finding the Fourth Proportional to 487,064.59, 672,169.89 and 272,204.65

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Solution

The fourth proportional to 487,064.59, 672,169.89 and 272,204.65 is: 375,654.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,064.59 : 672,169.89 = 272,204.65 : x
  2. Step 2: Convert to fraction form
    487,064.59/672,169.89 = 272,204.65/x
  3. Step 3: Cross multiply
    487,064.59x = 672,169.89 × 272,204.65
  4. Step 4: Simplify right side
    487,064.59x = 182,967,771,508.97
  5. Step 5: Solve for x
    x = 182,967,771,508.97/487,064.59
  6. Step 6: Final answer
    x = 375,654.02

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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.