Home / 2,072,696.72-3,109,045.02-809,638.60

Finding the Fourth Proportional to 2,072,696.72, 3,109,045.02 and 809,638.60

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Solution

The fourth proportional to 2,072,696.72, 3,109,045.02 and 809,638.60 is: 1,214,457.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072,696.72 : 3,109,045.02 = 809,638.60 : x
  2. Step 2: Convert to fraction form
    2,072,696.72/3,109,045.02 = 809,638.60/x
  3. Step 3: Cross multiply
    2,072,696.72x = 3,109,045.02 × 809,638.60
  4. Step 4: Simplify right side
    2,072,696.72x = 2,517,202,857,329.77
  5. Step 5: Solve for x
    x = 2,517,202,857,329.77/2,072,696.72
  6. Step 6: Final answer
    x = 1,214,457.88

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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.