Home / 852,278.58-1,278,085.77-319,509

Finding the Fourth Proportional to 852,278.58, 1,278,085.77 and 319,509

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Solution

The fourth proportional to 852,278.58, 1,278,085.77 and 319,509 is: 479,139.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,278.58 : 1,278,085.77 = 319,509 : x
  2. Step 2: Convert to fraction form
    852,278.58/1,278,085.77 = 319,509/x
  3. Step 3: Cross multiply
    852,278.58x = 1,278,085.77 × 319,509
  4. Step 4: Simplify right side
    852,278.58x = 408,359,906,286.93
  5. Step 5: Solve for x
    x = 408,359,906,286.93/852,278.58
  6. Step 6: Final answer
    x = 479,139.00

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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.