Home / 752,471.51-1,129,076.28-353,144.75

Finding the Fourth Proportional to 752,471.51, 1,129,076.28 and 353,144.75

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Solution

The fourth proportional to 752,471.51, 1,129,076.28 and 353,144.75 is: 529,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,471.51 : 1,129,076.28 = 353,144.75 : x
  2. Step 2: Convert to fraction form
    752,471.51/1,129,076.28 = 353,144.75/x
  3. Step 3: Cross multiply
    752,471.51x = 1,129,076.28 × 353,144.75
  4. Step 4: Simplify right side
    752,471.51x = 398,727,354,986.15
  5. Step 5: Solve for x
    x = 398,727,354,986.15/752,471.51
  6. Step 6: Final answer
    x = 529,890.30

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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.