Home / 1,331,121.54-1,836,947.79-727,509.54

Finding the Fourth Proportional to 1,331,121.54, 1,836,947.79 and 727,509.54

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Solution

The fourth proportional to 1,331,121.54, 1,836,947.79 and 727,509.54 is: 1,003,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,121.54 : 1,836,947.79 = 727,509.54 : x
  2. Step 2: Convert to fraction form
    1,331,121.54/1,836,947.79 = 727,509.54/x
  3. Step 3: Cross multiply
    1,331,121.54x = 1,836,947.79 × 727,509.54
  4. Step 4: Simplify right side
    1,331,121.54x = 1,336,397,041,706.92
  5. Step 5: Solve for x
    x = 1,336,397,041,706.92/1,331,121.54
  6. Step 6: Final answer
    x = 1,003,963.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.