Home / 986,856.46-1,361,785.90-557,179

Finding the Fourth Proportional to 986,856.46, 1,361,785.90 and 557,179

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Solution

The fourth proportional to 986,856.46, 1,361,785.90 and 557,179 is: 768,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,856.46 : 1,361,785.90 = 557,179 : x
  2. Step 2: Convert to fraction form
    986,856.46/1,361,785.90 = 557,179/x
  3. Step 3: Cross multiply
    986,856.46x = 1,361,785.90 × 557,179
  4. Step 4: Simplify right side
    986,856.46x = 758,758,505,976.10
  5. Step 5: Solve for x
    x = 758,758,505,976.10/986,856.46
  6. Step 6: Final answer
    x = 768,864.10

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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.