Home / 746,761.88-1,118,149.92-391,028.11

Finding the Fourth Proportional to 746,761.88, 1,118,149.92 and 391,028.11

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Solution

The fourth proportional to 746,761.88, 1,118,149.92 and 391,028.11 is: 585,498.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,761.88 : 1,118,149.92 = 391,028.11 : x
  2. Step 2: Convert to fraction form
    746,761.88/1,118,149.92 = 391,028.11/x
  3. Step 3: Cross multiply
    746,761.88x = 1,118,149.92 × 391,028.11
  4. Step 4: Simplify right side
    746,761.88x = 437,228,047,118.88
  5. Step 5: Solve for x
    x = 437,228,047,118.88/746,761.88
  6. Step 6: Final answer
    x = 585,498.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.