Home / 852,242.46-1,278,322.17-319,722

Finding the Fourth Proportional to 852,242.46, 1,278,322.17 and 319,722

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Solution

The fourth proportional to 852,242.46, 1,278,322.17 and 319,722 is: 479,567.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,242.46 : 1,278,322.17 = 319,722 : x
  2. Step 2: Convert to fraction form
    852,242.46/1,278,322.17 = 319,722/x
  3. Step 3: Cross multiply
    852,242.46x = 1,278,322.17 × 319,722
  4. Step 4: Simplify right side
    852,242.46x = 408,707,720,836.74
  5. Step 5: Solve for x
    x = 408,707,720,836.74/852,242.46
  6. Step 6: Final answer
    x = 479,567.42

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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.