Home / 769,375.13-1,061,708.92-442,738.58

Finding the Fourth Proportional to 769,375.13, 1,061,708.92 and 442,738.58

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Solution

The fourth proportional to 769,375.13, 1,061,708.92 and 442,738.58 is: 610,962.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,375.13 : 1,061,708.92 = 442,738.58 : x
  2. Step 2: Convert to fraction form
    769,375.13/1,061,708.92 = 442,738.58/x
  3. Step 3: Cross multiply
    769,375.13x = 1,061,708.92 × 442,738.58
  4. Step 4: Simplify right side
    769,375.13x = 470,059,493,198.74
  5. Step 5: Solve for x
    x = 470,059,493,198.74/769,375.13
  6. Step 6: Final answer
    x = 610,962.69

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1.5x scale

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.