Home / 694,287.60-1,040,740.20-319,657.20

Finding the Fourth Proportional to 694,287.60, 1,040,740.20 and 319,657.20

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Solution

The fourth proportional to 694,287.60, 1,040,740.20 and 319,657.20 is: 479,167.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,287.60 : 1,040,740.20 = 319,657.20 : x
  2. Step 2: Convert to fraction form
    694,287.60/1,040,740.20 = 319,657.20/x
  3. Step 3: Cross multiply
    694,287.60x = 1,040,740.20 × 319,657.20
  4. Step 4: Simplify right side
    694,287.60x = 332,680,098,259.44
  5. Step 5: Solve for x
    x = 332,680,098,259.44/694,287.60
  6. Step 6: Final answer
    x = 479,167.56

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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.