Home / 752,617.60-1,128,004.80-331,446.40

Finding the Fourth Proportional to 752,617.60, 1,128,004.80 and 331,446.40

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Solution

The fourth proportional to 752,617.60, 1,128,004.80 and 331,446.40 is: 496,763.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,617.60 : 1,128,004.80 = 331,446.40 : x
  2. Step 2: Convert to fraction form
    752,617.60/1,128,004.80 = 331,446.40/x
  3. Step 3: Cross multiply
    752,617.60x = 1,128,004.80 × 331,446.40
  4. Step 4: Simplify right side
    752,617.60x = 373,873,130,142.72
  5. Step 5: Solve for x
    x = 373,873,130,142.72/752,617.60
  6. Step 6: Final answer
    x = 496,763.74

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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.