Home / 817,871.31-1,226,713.14-218,879.15

Finding the Fourth Proportional to 817,871.31, 1,226,713.14 and 218,879.15

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Solution

The fourth proportional to 817,871.31, 1,226,713.14 and 218,879.15 is: 328,293.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,871.31 : 1,226,713.14 = 218,879.15 : x
  2. Step 2: Convert to fraction form
    817,871.31/1,226,713.14 = 218,879.15/x
  3. Step 3: Cross multiply
    817,871.31x = 1,226,713.14 × 218,879.15
  4. Step 4: Simplify right side
    817,871.31x = 268,501,923,243.47
  5. Step 5: Solve for x
    x = 268,501,923,243.47/817,871.31
  6. Step 6: Final answer
    x = 328,293.61

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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.