Home / 756,764.64-1,135,146.96-258,132.96

Finding the Fourth Proportional to 756,764.64, 1,135,146.96 and 258,132.96

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Solution

The fourth proportional to 756,764.64, 1,135,146.96 and 258,132.96 is: 387,199.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,764.64 : 1,135,146.96 = 258,132.96 : x
  2. Step 2: Convert to fraction form
    756,764.64/1,135,146.96 = 258,132.96/x
  3. Step 3: Cross multiply
    756,764.64x = 1,135,146.96 × 258,132.96
  4. Step 4: Simplify right side
    756,764.64x = 293,018,844,819.80
  5. Step 5: Solve for x
    x = 293,018,844,819.80/756,764.64
  6. Step 6: Final answer
    x = 387,199.44

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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.