Home / 520,736.70-781,105.05-165,786.60

Finding the Fourth Proportional to 520,736.70, 781,105.05 and 165,786.60

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Solution

The fourth proportional to 520,736.70, 781,105.05 and 165,786.60 is: 248,679.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,736.70 : 781,105.05 = 165,786.60 : x
  2. Step 2: Convert to fraction form
    520,736.70/781,105.05 = 165,786.60/x
  3. Step 3: Cross multiply
    520,736.70x = 781,105.05 × 165,786.60
  4. Step 4: Simplify right side
    520,736.70x = 129,496,750,482.33
  5. Step 5: Solve for x
    x = 129,496,750,482.33/520,736.70
  6. Step 6: Final answer
    x = 248,679.90

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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.