Home / 852,288.67-1,278,100.77-319,519

Finding the Fourth Proportional to 852,288.67, 1,278,100.77 and 319,519

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Solution

The fourth proportional to 852,288.67, 1,278,100.77 and 319,519 is: 479,153.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,288.67 : 1,278,100.77 = 319,519 : x
  2. Step 2: Convert to fraction form
    852,288.67/1,278,100.77 = 319,519/x
  3. Step 3: Cross multiply
    852,288.67x = 1,278,100.77 × 319,519
  4. Step 4: Simplify right side
    852,288.67x = 408,377,479,929.63
  5. Step 5: Solve for x
    x = 408,377,479,929.63/852,288.67
  6. Step 6: Final answer
    x = 479,153.95

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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.