Home / 487,046.91-672,123.44-272,186.79

Finding the Fourth Proportional to 487,046.91, 672,123.44 and 272,186.79

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Solution

The fourth proportional to 487,046.91, 672,123.44 and 272,186.79 is: 375,617.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,046.91 : 672,123.44 = 272,186.79 : x
  2. Step 2: Convert to fraction form
    487,046.91/672,123.44 = 272,186.79/x
  3. Step 3: Cross multiply
    487,046.91x = 672,123.44 × 272,186.79
  4. Step 4: Simplify right side
    487,046.91x = 182,943,120,256.42
  5. Step 5: Solve for x
    x = 182,943,120,256.42/487,046.91
  6. Step 6: Final answer
    x = 375,617.04

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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.