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Finding the Fourth Proportional to 486,999.54, 672,058.28 and 272,139.62

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Solution

The fourth proportional to 486,999.54, 672,058.28 and 272,139.62 is: 375,552.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,999.54 : 672,058.28 = 272,139.62 : x
  2. Step 2: Convert to fraction form
    486,999.54/672,058.28 = 272,139.62/x
  3. Step 3: Cross multiply
    486,999.54x = 672,058.28 × 272,139.62
  4. Step 4: Simplify right side
    486,999.54x = 182,893,682,257.11
  5. Step 5: Solve for x
    x = 182,893,682,257.11/486,999.54
  6. Step 6: Final answer
    x = 375,552.06

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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.