Home / 487,042.30-672,132.81-272,182.96

Finding the Fourth Proportional to 487,042.30, 672,132.81 and 272,182.96

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Solution

The fourth proportional to 487,042.30, 672,132.81 and 272,182.96 is: 375,620.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,042.30 : 672,132.81 = 272,182.96 : x
  2. Step 2: Convert to fraction form
    487,042.30/672,132.81 = 272,182.96/x
  3. Step 3: Cross multiply
    487,042.30x = 672,132.81 × 272,182.96
  4. Step 4: Simplify right side
    487,042.30x = 182,943,097,738.92
  5. Step 5: Solve for x
    x = 182,943,097,738.92/487,042.30
  6. Step 6: Final answer
    x = 375,620.55

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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.