Home / 998,255.80-1,497,383.70-821,108.80

Finding the Fourth Proportional to 998,255.80, 1,497,383.70 and 821,108.80

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Solution

The fourth proportional to 998,255.80, 1,497,383.70 and 821,108.80 is: 1,231,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,255.80 : 1,497,383.70 = 821,108.80 : x
  2. Step 2: Convert to fraction form
    998,255.80/1,497,383.70 = 821,108.80/x
  3. Step 3: Cross multiply
    998,255.80x = 1,497,383.70 × 821,108.80
  4. Step 4: Simplify right side
    998,255.80x = 1,229,514,933,046.56
  5. Step 5: Solve for x
    x = 1,229,514,933,046.56/998,255.80
  6. Step 6: Final answer
    x = 1,231,663.20

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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.