Home / 487,022.48-672,091.94-272,162.55

Finding the Fourth Proportional to 487,022.48, 672,091.94 and 272,162.55

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Solution

The fourth proportional to 487,022.48, 672,091.94 and 272,162.55 is: 375,584.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,022.48 : 672,091.94 = 272,162.55 : x
  2. Step 2: Convert to fraction form
    487,022.48/672,091.94 = 272,162.55/x
  3. Step 3: Cross multiply
    487,022.48x = 672,091.94 × 272,162.55
  4. Step 4: Simplify right side
    487,022.48x = 182,918,253,864.21
  5. Step 5: Solve for x
    x = 182,918,253,864.21/487,022.48
  6. Step 6: Final answer
    x = 375,584.83

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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.