Home / 998,250.80-1,497,376.20-821,103.80

Finding the Fourth Proportional to 998,250.80, 1,497,376.20 and 821,103.80

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Solution

The fourth proportional to 998,250.80, 1,497,376.20 and 821,103.80 is: 1,231,655.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,250.80 : 1,497,376.20 = 821,103.80 : x
  2. Step 2: Convert to fraction form
    998,250.80/1,497,376.20 = 821,103.80/x
  3. Step 3: Cross multiply
    998,250.80x = 1,497,376.20 × 821,103.80
  4. Step 4: Simplify right side
    998,250.80x = 1,229,501,287,849.56
  5. Step 5: Solve for x
    x = 1,229,501,287,849.56/998,250.80
  6. Step 6: Final answer
    x = 1,231,655.70

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Double scale
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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.