Home / 519,481.14-779,221.74-140,372.79

Finding the Fourth Proportional to 519,481.14, 779,221.74 and 140,372.79

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Solution

The fourth proportional to 519,481.14, 779,221.74 and 140,372.79 is: 210,559.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,481.14 : 779,221.74 = 140,372.79 : x
  2. Step 2: Convert to fraction form
    519,481.14/779,221.74 = 140,372.79/x
  3. Step 3: Cross multiply
    519,481.14x = 779,221.74 × 140,372.79
  4. Step 4: Simplify right side
    519,481.14x = 109,381,529,672.46
  5. Step 5: Solve for x
    x = 109,381,529,672.46/519,481.14
  6. Step 6: Final answer
    x = 210,559.19

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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.