Home / 752,078.04-1,128,036.66-212,321.04

Finding the Fourth Proportional to 752,078.04, 1,128,036.66 and 212,321.04

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Solution

The fourth proportional to 752,078.04, 1,128,036.66 and 212,321.04 is: 318,458.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,078.04 : 1,128,036.66 = 212,321.04 : x
  2. Step 2: Convert to fraction form
    752,078.04/1,128,036.66 = 212,321.04/x
  3. Step 3: Cross multiply
    752,078.04x = 1,128,036.66 × 212,321.04
  4. Step 4: Simplify right side
    752,078.04x = 239,505,916,809.33
  5. Step 5: Solve for x
    x = 239,505,916,809.33/752,078.04
  6. Step 6: Final answer
    x = 318,458.86

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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.