Home / 778,550.40-1,167,825.60-279,964.80

Finding the Fourth Proportional to 778,550.40, 1,167,825.60 and 279,964.80

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Solution

The fourth proportional to 778,550.40, 1,167,825.60 and 279,964.80 is: 419,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,550.40 : 1,167,825.60 = 279,964.80 : x
  2. Step 2: Convert to fraction form
    778,550.40/1,167,825.60 = 279,964.80/x
  3. Step 3: Cross multiply
    778,550.40x = 1,167,825.60 × 279,964.80
  4. Step 4: Simplify right side
    778,550.40x = 326,950,060,538.88
  5. Step 5: Solve for x
    x = 326,950,060,538.88/778,550.40
  6. Step 6: Final answer
    x = 419,947.20

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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.