Home / 986,857.46-1,361,787.28-557,180

Finding the Fourth Proportional to 986,857.46, 1,361,787.28 and 557,180

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Solution

The fourth proportional to 986,857.46, 1,361,787.28 and 557,180 is: 768,865.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,857.46 : 1,361,787.28 = 557,180 : x
  2. Step 2: Convert to fraction form
    986,857.46/1,361,787.28 = 557,180/x
  3. Step 3: Cross multiply
    986,857.46x = 1,361,787.28 × 557,180
  4. Step 4: Simplify right side
    986,857.46x = 758,760,636,670.40
  5. Step 5: Solve for x
    x = 758,760,636,670.40/986,857.46
  6. Step 6: Final answer
    x = 768,865.48

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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.