Home / 693,757.64-1,040,620.20-319,780.64

Finding the Fourth Proportional to 693,757.64, 1,040,620.20 and 319,780.64

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Solution

The fourth proportional to 693,757.64, 1,040,620.20 and 319,780.64 is: 479,663.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,757.64 : 1,040,620.20 = 319,780.64 : x
  2. Step 2: Convert to fraction form
    693,757.64/1,040,620.20 = 319,780.64/x
  3. Step 3: Cross multiply
    693,757.64x = 1,040,620.20 × 319,780.64
  4. Step 4: Simplify right side
    693,757.64x = 332,770,193,552.93
  5. Step 5: Solve for x
    x = 332,770,193,552.93/693,757.64
  6. Step 6: Final answer
    x = 479,663.47

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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.