Home / 724,139.70-1,086,209.55-191,714.55

Finding the Fourth Proportional to 724,139.70, 1,086,209.55 and 191,714.55

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Solution

The fourth proportional to 724,139.70, 1,086,209.55 and 191,714.55 is: 287,571.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,139.70 : 1,086,209.55 = 191,714.55 : x
  2. Step 2: Convert to fraction form
    724,139.70/1,086,209.55 = 191,714.55/x
  3. Step 3: Cross multiply
    724,139.70x = 1,086,209.55 × 191,714.55
  4. Step 4: Simplify right side
    724,139.70x = 208,242,175,083.95
  5. Step 5: Solve for x
    x = 208,242,175,083.95/724,139.70
  6. Step 6: Final answer
    x = 287,571.83

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Similar ratio
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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.