Home / 677,910.96-1,016,238.72-251,209.20

Finding the Fourth Proportional to 677,910.96, 1,016,238.72 and 251,209.20

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Solution

The fourth proportional to 677,910.96, 1,016,238.72 and 251,209.20 is: 376,581.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,910.96 : 1,016,238.72 = 251,209.20 : x
  2. Step 2: Convert to fraction form
    677,910.96/1,016,238.72 = 251,209.20/x
  3. Step 3: Cross multiply
    677,910.96x = 1,016,238.72 × 251,209.20
  4. Step 4: Simplify right side
    677,910.96x = 255,288,515,860.22
  5. Step 5: Solve for x
    x = 255,288,515,860.22/677,910.96
  6. Step 6: Final answer
    x = 376,581.19

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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.