Home / 1,257,787.80-1,735,778.34-684,859.38

Finding the Fourth Proportional to 1,257,787.80, 1,735,778.34 and 684,859.38

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Solution

The fourth proportional to 1,257,787.80, 1,735,778.34 and 684,859.38 is: 945,122.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,787.80 : 1,735,778.34 = 684,859.38 : x
  2. Step 2: Convert to fraction form
    1,257,787.80/1,735,778.34 = 684,859.38/x
  3. Step 3: Cross multiply
    1,257,787.80x = 1,735,778.34 × 684,859.38
  4. Step 4: Simplify right side
    1,257,787.80x = 1,188,764,077,749.83
  5. Step 5: Solve for x
    x = 1,188,764,077,749.83/1,257,787.80
  6. Step 6: Final answer
    x = 945,122.92

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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.