Home / 852,270.42-1,278,073.40-319,500.75

Finding the Fourth Proportional to 852,270.42, 1,278,073.40 and 319,500.75

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Solution

The fourth proportional to 852,270.42, 1,278,073.40 and 319,500.75 is: 479,126.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,270.42 : 1,278,073.40 = 319,500.75 : x
  2. Step 2: Convert to fraction form
    852,270.42/1,278,073.40 = 319,500.75/x
  3. Step 3: Cross multiply
    852,270.42x = 1,278,073.40 × 319,500.75
  4. Step 4: Simplify right side
    852,270.42x = 408,345,408,257.55
  5. Step 5: Solve for x
    x = 408,345,408,257.55/852,270.42
  6. Step 6: Final answer
    x = 479,126.58

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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.