Home / 1,640,721.10-2,457,145.05-798,288.70

Finding the Fourth Proportional to 1,640,721.10, 2,457,145.05 and 798,288.70

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Solution

The fourth proportional to 1,640,721.10, 2,457,145.05 and 798,288.70 is: 1,195,517.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,721.10 : 2,457,145.05 = 798,288.70 : x
  2. Step 2: Convert to fraction form
    1,640,721.10/2,457,145.05 = 798,288.70/x
  3. Step 3: Cross multiply
    1,640,721.10x = 2,457,145.05 × 798,288.70
  4. Step 4: Simplify right side
    1,640,721.10x = 1,961,511,127,675.93
  5. Step 5: Solve for x
    x = 1,961,511,127,675.93/1,640,721.10
  6. Step 6: Final answer
    x = 1,195,517.71

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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.