Home / 852,275.17-1,278,080.52-319,505.50

Finding the Fourth Proportional to 852,275.17, 1,278,080.52 and 319,505.50

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Solution

The fourth proportional to 852,275.17, 1,278,080.52 and 319,505.50 is: 479,133.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,275.17 : 1,278,080.52 = 319,505.50 : x
  2. Step 2: Convert to fraction form
    852,275.17/1,278,080.52 = 319,505.50/x
  3. Step 3: Cross multiply
    852,275.17x = 1,278,080.52 × 319,505.50
  4. Step 4: Simplify right side
    852,275.17x = 408,353,755,582.86
  5. Step 5: Solve for x
    x = 408,353,755,582.86/852,275.17
  6. Step 6: Final answer
    x = 479,133.70

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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.