Home / 487,072.45-672,167.60-272,226.43

Finding the Fourth Proportional to 487,072.45, 672,167.60 and 272,226.43

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Solution

The fourth proportional to 487,072.45, 672,167.60 and 272,226.43 is: 375,676.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,072.45 : 672,167.60 = 272,226.43 : x
  2. Step 2: Convert to fraction form
    487,072.45/672,167.60 = 272,226.43/x
  3. Step 3: Cross multiply
    487,072.45x = 672,167.60 × 272,226.43
  4. Step 4: Simplify right side
    487,072.45x = 182,981,786,109.67
  5. Step 5: Solve for x
    x = 182,981,786,109.67/487,072.45
  6. Step 6: Final answer
    x = 375,676.73

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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.