Home / 1,782,109.40-2,667,259.20-1,640,391.80

Finding the Fourth Proportional to 1,782,109.40, 2,667,259.20 and 1,640,391.80

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Solution

The fourth proportional to 1,782,109.40, 2,667,259.20 and 1,640,391.80 is: 2,455,152.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782,109.40 : 2,667,259.20 = 1,640,391.80 : x
  2. Step 2: Convert to fraction form
    1,782,109.40/2,667,259.20 = 1,640,391.80/x
  3. Step 3: Cross multiply
    1,782,109.40x = 2,667,259.20 × 1,640,391.80
  4. Step 4: Simplify right side
    1,782,109.40x = 4,375,350,120,154.56
  5. Step 5: Solve for x
    x = 4,375,350,120,154.56/1,782,109.40
  6. Step 6: Final answer
    x = 2,455,152.37

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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.