Home / 721,879.60-1,082,965.20-248,612.80

Finding the Fourth Proportional to 721,879.60, 1,082,965.20 and 248,612.80

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Solution

The fourth proportional to 721,879.60, 1,082,965.20 and 248,612.80 is: 372,969.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,879.60 : 1,082,965.20 = 248,612.80 : x
  2. Step 2: Convert to fraction form
    721,879.60/1,082,965.20 = 248,612.80/x
  3. Step 3: Cross multiply
    721,879.60x = 1,082,965.20 × 248,612.80
  4. Step 4: Simplify right side
    721,879.60x = 269,239,010,674.56
  5. Step 5: Solve for x
    x = 269,239,010,674.56/721,879.60
  6. Step 6: Final answer
    x = 372,969.41

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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.