Home / 752,175.66-1,128,429.57-278,861.01

Finding the Fourth Proportional to 752,175.66, 1,128,429.57 and 278,861.01

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Solution

The fourth proportional to 752,175.66, 1,128,429.57 and 278,861.01 is: 418,353.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,175.66 : 1,128,429.57 = 278,861.01 : x
  2. Step 2: Convert to fraction form
    752,175.66/1,128,429.57 = 278,861.01/x
  3. Step 3: Cross multiply
    752,175.66x = 1,128,429.57 × 278,861.01
  4. Step 4: Simplify right side
    752,175.66x = 314,675,009,604.07
  5. Step 5: Solve for x
    x = 314,675,009,604.07/752,175.66
  6. Step 6: Final answer
    x = 418,353.09

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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.