Home / 752,810.45-1,128,356.71-303,243.65

Finding the Fourth Proportional to 752,810.45, 1,128,356.71 and 303,243.65

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Solution

The fourth proportional to 752,810.45, 1,128,356.71 and 303,243.65 is: 454,519.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,810.45 : 1,128,356.71 = 303,243.65 : x
  2. Step 2: Convert to fraction form
    752,810.45/1,128,356.71 = 303,243.65/x
  3. Step 3: Cross multiply
    752,810.45x = 1,128,356.71 × 303,243.65
  4. Step 4: Simplify right side
    752,810.45x = 342,167,007,242.39
  5. Step 5: Solve for x
    x = 342,167,007,242.39/752,810.45
  6. Step 6: Final answer
    x = 454,519.47

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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.