Home / 767,999.70-1,151,999.55-394,751.70

Finding the Fourth Proportional to 767,999.70, 1,151,999.55 and 394,751.70

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Solution

The fourth proportional to 767,999.70, 1,151,999.55 and 394,751.70 is: 592,127.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,999.70 : 1,151,999.55 = 394,751.70 : x
  2. Step 2: Convert to fraction form
    767,999.70/1,151,999.55 = 394,751.70/x
  3. Step 3: Cross multiply
    767,999.70x = 1,151,999.55 × 394,751.70
  4. Step 4: Simplify right side
    767,999.70x = 454,753,780,761.74
  5. Step 5: Solve for x
    x = 454,753,780,761.74/767,999.70
  6. Step 6: Final answer
    x = 592,127.55

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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.