Home / 852,434.28-1,278,257.76-319,574.16

Finding the Fourth Proportional to 852,434.28, 1,278,257.76 and 319,574.16

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Solution

The fourth proportional to 852,434.28, 1,278,257.76 and 319,574.16 is: 479,213.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,434.28 : 1,278,257.76 = 319,574.16 : x
  2. Step 2: Convert to fraction form
    852,434.28/1,278,257.76 = 319,574.16/x
  3. Step 3: Cross multiply
    852,434.28x = 1,278,257.76 × 319,574.16
  4. Step 4: Simplify right side
    852,434.28x = 408,498,149,915.48
  5. Step 5: Solve for x
    x = 408,498,149,915.48/852,434.28
  6. Step 6: Final answer
    x = 479,213.66

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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.