Home / 1,288,769.60-1,930,821.60-1,102,145.60

Finding the Fourth Proportional to 1,288,769.60, 1,930,821.60 and 1,102,145.60

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Solution

The fourth proportional to 1,288,769.60, 1,930,821.60 and 1,102,145.60 is: 1,651,223.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,769.60 : 1,930,821.60 = 1,102,145.60 : x
  2. Step 2: Convert to fraction form
    1,288,769.60/1,930,821.60 = 1,102,145.60/x
  3. Step 3: Cross multiply
    1,288,769.60x = 1,930,821.60 × 1,102,145.60
  4. Step 4: Simplify right side
    1,288,769.60x = 2,128,046,530,824.96
  5. Step 5: Solve for x
    x = 2,128,046,530,824.96/1,288,769.60
  6. Step 6: Final answer
    x = 1,651,223.41

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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.