Home / 818,829.67-1,228,244.51-319,843.75

Finding the Fourth Proportional to 818,829.67, 1,228,244.51 and 319,843.75

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Solution

The fourth proportional to 818,829.67, 1,228,244.51 and 319,843.75 is: 479,765.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,829.67 : 1,228,244.51 = 319,843.75 : x
  2. Step 2: Convert to fraction form
    818,829.67/1,228,244.51 = 319,843.75/x
  3. Step 3: Cross multiply
    818,829.67x = 1,228,244.51 × 319,843.75
  4. Step 4: Simplify right side
    818,829.67x = 392,846,328,396.09
  5. Step 5: Solve for x
    x = 392,846,328,396.09/818,829.67
  6. Step 6: Final answer
    x = 479,765.63

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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.