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Finding the Fourth Proportional to 2,640,469.80, 3,962,259.90 and 1,744,501.80

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Solution

The fourth proportional to 2,640,469.80, 3,962,259.90 and 1,744,501.80 is: 2,617,780.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,469.80 : 3,962,259.90 = 1,744,501.80 : x
  2. Step 2: Convert to fraction form
    2,640,469.80/3,962,259.90 = 1,744,501.80/x
  3. Step 3: Cross multiply
    2,640,469.80x = 3,962,259.90 × 1,744,501.80
  4. Step 4: Simplify right side
    2,640,469.80x = 6,912,169,527,617.82
  5. Step 5: Solve for x
    x = 6,912,169,527,617.82/2,640,469.80
  6. Step 6: Final answer
    x = 2,617,780.19

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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.