Home / 705,449.15-1,057,448.97-278,811.62

Finding the Fourth Proportional to 705,449.15, 1,057,448.97 and 278,811.62

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Solution

The fourth proportional to 705,449.15, 1,057,448.97 and 278,811.62 is: 417,930.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,449.15 : 1,057,448.97 = 278,811.62 : x
  2. Step 2: Convert to fraction form
    705,449.15/1,057,448.97 = 278,811.62/x
  3. Step 3: Cross multiply
    705,449.15x = 1,057,448.97 × 278,811.62
  4. Step 4: Simplify right side
    705,449.15x = 294,829,055,105.79
  5. Step 5: Solve for x
    x = 294,829,055,105.79/705,449.15
  6. Step 6: Final answer
    x = 417,930.98

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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.