Home / 752,382.30-1,128,048.54-278,940.54

Finding the Fourth Proportional to 752,382.30, 1,128,048.54 and 278,940.54

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Solution

The fourth proportional to 752,382.30, 1,128,048.54 and 278,940.54 is: 418,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,382.30 : 1,128,048.54 = 278,940.54 : x
  2. Step 2: Convert to fraction form
    752,382.30/1,128,048.54 = 278,940.54/x
  3. Step 3: Cross multiply
    752,382.30x = 1,128,048.54 × 278,940.54
  4. Step 4: Simplify right side
    752,382.30x = 314,658,468,893.81
  5. Step 5: Solve for x
    x = 314,658,468,893.81/752,382.30
  6. Step 6: Final answer
    x = 418,216.20

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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.