Home / 752,742.10-1,128,785.10-303,313.60

Finding the Fourth Proportional to 752,742.10, 1,128,785.10 and 303,313.60

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Solution

The fourth proportional to 752,742.10, 1,128,785.10 and 303,313.60 is: 454,838.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,742.10 : 1,128,785.10 = 303,313.60 : x
  2. Step 2: Convert to fraction form
    752,742.10/1,128,785.10 = 303,313.60/x
  3. Step 3: Cross multiply
    752,742.10x = 1,128,785.10 × 303,313.60
  4. Step 4: Simplify right side
    752,742.10x = 342,375,872,307.36
  5. Step 5: Solve for x
    x = 342,375,872,307.36/752,742.10
  6. Step 6: Final answer
    x = 454,838.21

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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.