Home / 679,819.60-1,019,081.40-253,241.20

Finding the Fourth Proportional to 679,819.60, 1,019,081.40 and 253,241.20

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Solution

The fourth proportional to 679,819.60, 1,019,081.40 and 253,241.20 is: 379,620.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,819.60 : 1,019,081.40 = 253,241.20 : x
  2. Step 2: Convert to fraction form
    679,819.60/1,019,081.40 = 253,241.20/x
  3. Step 3: Cross multiply
    679,819.60x = 1,019,081.40 × 253,241.20
  4. Step 4: Simplify right side
    679,819.60x = 258,073,396,633.68
  5. Step 5: Solve for x
    x = 258,073,396,633.68/679,819.60
  6. Step 6: Final answer
    x = 379,620.41

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Half scale
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Double scale
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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.