Home / 1,131,088.88-1,560,863.04-621,787.92

Finding the Fourth Proportional to 1,131,088.88, 1,560,863.04 and 621,787.92

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Solution

The fourth proportional to 1,131,088.88, 1,560,863.04 and 621,787.92 is: 858,045.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,088.88 : 1,560,863.04 = 621,787.92 : x
  2. Step 2: Convert to fraction form
    1,131,088.88/1,560,863.04 = 621,787.92/x
  3. Step 3: Cross multiply
    1,131,088.88x = 1,560,863.04 × 621,787.92
  4. Step 4: Simplify right side
    1,131,088.88x = 970,525,783,046.48
  5. Step 5: Solve for x
    x = 970,525,783,046.48/1,131,088.88
  6. Step 6: Final answer
    x = 858,045.55

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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.