Home / 724,755.85-1,086,761.89-383,383.53

Finding the Fourth Proportional to 724,755.85, 1,086,761.89 and 383,383.53

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Solution

The fourth proportional to 724,755.85, 1,086,761.89 and 383,383.53 is: 574,878.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,755.85 : 1,086,761.89 = 383,383.53 : x
  2. Step 2: Convert to fraction form
    724,755.85/1,086,761.89 = 383,383.53/x
  3. Step 3: Cross multiply
    724,755.85x = 1,086,761.89 × 383,383.53
  4. Step 4: Simplify right side
    724,755.85x = 416,646,609,657.67
  5. Step 5: Solve for x
    x = 416,646,609,657.67/724,755.85
  6. Step 6: Final answer
    x = 574,878.57

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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.