Home / 781,633.06-1,172,238.65-276,127.49

Finding the Fourth Proportional to 781,633.06, 1,172,238.65 and 276,127.49

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Solution

The fourth proportional to 781,633.06, 1,172,238.65 and 276,127.49 is: 414,116.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,633.06 : 1,172,238.65 = 276,127.49 : x
  2. Step 2: Convert to fraction form
    781,633.06/1,172,238.65 = 276,127.49/x
  3. Step 3: Cross multiply
    781,633.06x = 1,172,238.65 × 276,127.49
  4. Step 4: Simplify right side
    781,633.06x = 323,687,310,934.61
  5. Step 5: Solve for x
    x = 323,687,310,934.61/781,633.06
  6. Step 6: Final answer
    x = 414,116.71

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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.