Home / 724,757.85-1,086,764.88-383,385.54

Finding the Fourth Proportional to 724,757.85, 1,086,764.88 and 383,385.54

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Solution

The fourth proportional to 724,757.85, 1,086,764.88 and 383,385.54 is: 574,881.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,757.85 : 1,086,764.88 = 383,385.54 : x
  2. Step 2: Convert to fraction form
    724,757.85/1,086,764.88 = 383,385.54/x
  3. Step 3: Cross multiply
    724,757.85x = 1,086,764.88 × 383,385.54
  4. Step 4: Simplify right side
    724,757.85x = 416,649,940,371.84
  5. Step 5: Solve for x
    x = 416,649,940,371.84/724,757.85
  6. Step 6: Final answer
    x = 574,881.58

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1.5x scale

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.