Home / 1,251,775.46-1,727,451.06-678,815.48

Finding the Fourth Proportional to 1,251,775.46, 1,727,451.06 and 678,815.48

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Solution

The fourth proportional to 1,251,775.46, 1,727,451.06 and 678,815.48 is: 936,765.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,775.46 : 1,727,451.06 = 678,815.48 : x
  2. Step 2: Convert to fraction form
    1,251,775.46/1,727,451.06 = 678,815.48/x
  3. Step 3: Cross multiply
    1,251,775.46x = 1,727,451.06 × 678,815.48
  4. Step 4: Simplify right side
    1,251,775.46x = 1,172,620,520,470.41
  5. Step 5: Solve for x
    x = 1,172,620,520,470.41/1,251,775.46
  6. Step 6: Final answer
    x = 936,765.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.