Home / 851,320.97-1,276,382.71-395,428.20

Finding the Fourth Proportional to 851,320.97, 1,276,382.71 and 395,428.20

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Solution

The fourth proportional to 851,320.97, 1,276,382.71 and 395,428.20 is: 592,864.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,320.97 : 1,276,382.71 = 395,428.20 : x
  2. Step 2: Convert to fraction form
    851,320.97/1,276,382.71 = 395,428.20/x
  3. Step 3: Cross multiply
    851,320.97x = 1,276,382.71 × 395,428.20
  4. Step 4: Simplify right side
    851,320.97x = 504,717,713,234.27
  5. Step 5: Solve for x
    x = 504,717,713,234.27/851,320.97
  6. Step 6: Final answer
    x = 592,864.19

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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.