Home / 693,723.60-1,039,894.20-319,093.20

Finding the Fourth Proportional to 693,723.60, 1,039,894.20 and 319,093.20

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Solution

The fourth proportional to 693,723.60, 1,039,894.20 and 319,093.20 is: 478,321.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,723.60 : 1,039,894.20 = 319,093.20 : x
  2. Step 2: Convert to fraction form
    693,723.60/1,039,894.20 = 319,093.20/x
  3. Step 3: Cross multiply
    693,723.60x = 1,039,894.20 × 319,093.20
  4. Step 4: Simplify right side
    693,723.60x = 331,823,167,939.44
  5. Step 5: Solve for x
    x = 331,823,167,939.44/693,723.60
  6. Step 6: Final answer
    x = 478,321.87

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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.