Home / 681,763.29-1,022,644.91-208,448.61

Finding the Fourth Proportional to 681,763.29, 1,022,644.91 and 208,448.61

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Solution

The fourth proportional to 681,763.29, 1,022,644.91 and 208,448.61 is: 312,672.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,763.29 : 1,022,644.91 = 208,448.61 : x
  2. Step 2: Convert to fraction form
    681,763.29/1,022,644.91 = 208,448.61/x
  3. Step 3: Cross multiply
    681,763.29x = 1,022,644.91 × 208,448.61
  4. Step 4: Simplify right side
    681,763.29x = 213,168,908,970.83
  5. Step 5: Solve for x
    x = 213,168,908,970.83/681,763.29
  6. Step 6: Final answer
    x = 312,672.91

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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.