Home / 818,832.67-1,228,249.01-319,846.75

Finding the Fourth Proportional to 818,832.67, 1,228,249.01 and 319,846.75

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Solution

The fourth proportional to 818,832.67, 1,228,249.01 and 319,846.75 is: 479,770.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,832.67 : 1,228,249.01 = 319,846.75 : x
  2. Step 2: Convert to fraction form
    818,832.67/1,228,249.01 = 319,846.75/x
  3. Step 3: Cross multiply
    818,832.67x = 1,228,249.01 × 319,846.75
  4. Step 4: Simplify right side
    818,832.67x = 392,851,454,039.22
  5. Step 5: Solve for x
    x = 392,851,454,039.22/818,832.67
  6. Step 6: Final answer
    x = 479,770.13

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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.