Home / 827,350.80-1,241,026.20-512,422.80

Finding the Fourth Proportional to 827,350.80, 1,241,026.20 and 512,422.80

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Solution

The fourth proportional to 827,350.80, 1,241,026.20 and 512,422.80 is: 768,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,350.80 : 1,241,026.20 = 512,422.80 : x
  2. Step 2: Convert to fraction form
    827,350.80/1,241,026.20 = 512,422.80/x
  3. Step 3: Cross multiply
    827,350.80x = 1,241,026.20 × 512,422.80
  4. Step 4: Simplify right side
    827,350.80x = 635,930,120,277.36
  5. Step 5: Solve for x
    x = 635,930,120,277.36/827,350.80
  6. Step 6: Final answer
    x = 768,634.20

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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.