Home / 2,072,714.78-3,109,072.30-809,656.70

Finding the Fourth Proportional to 2,072,714.78, 3,109,072.30 and 809,656.70

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Solution

The fourth proportional to 2,072,714.78, 3,109,072.30 and 809,656.70 is: 1,214,485.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072,714.78 : 3,109,072.30 = 809,656.70 : x
  2. Step 2: Convert to fraction form
    2,072,714.78/3,109,072.30 = 809,656.70/x
  3. Step 3: Cross multiply
    2,072,714.78x = 3,109,072.30 × 809,656.70
  4. Step 4: Simplify right side
    2,072,714.78x = 2,517,281,218,479.41
  5. Step 5: Solve for x
    x = 2,517,281,218,479.41/2,072,714.78
  6. Step 6: Final answer
    x = 1,214,485.10

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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.