Home / 487,083.50-672,146.26-269,279.12

Finding the Fourth Proportional to 487,083.50, 672,146.26 and 269,279.12

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Solution

The fourth proportional to 487,083.50, 672,146.26 and 269,279.12 is: 371,589.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,083.50 : 672,146.26 = 269,279.12 : x
  2. Step 2: Convert to fraction form
    487,083.50/672,146.26 = 269,279.12/x
  3. Step 3: Cross multiply
    487,083.50x = 672,146.26 × 269,279.12
  4. Step 4: Simplify right side
    487,083.50x = 180,994,953,404.09
  5. Step 5: Solve for x
    x = 180,994,953,404.09/487,083.50
  6. Step 6: Final answer
    x = 371,589.17

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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.