Home / 1,381,815.06-2,071,150.24-840,878.29

Finding the Fourth Proportional to 1,381,815.06, 2,071,150.24 and 840,878.29

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Solution

The fourth proportional to 1,381,815.06, 2,071,150.24 and 840,878.29 is: 1,260,360.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,815.06 : 2,071,150.24 = 840,878.29 : x
  2. Step 2: Convert to fraction form
    1,381,815.06/2,071,150.24 = 840,878.29/x
  3. Step 3: Cross multiply
    1,381,815.06x = 2,071,150.24 × 840,878.29
  4. Step 4: Simplify right side
    1,381,815.06x = 1,741,585,272,144.29
  5. Step 5: Solve for x
    x = 1,741,585,272,144.29/1,381,815.06
  6. Step 6: Final answer
    x = 1,260,360.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.