Home / 1,188,217.20-1,782,107.10-738,132.60

Finding the Fourth Proportional to 1,188,217.20, 1,782,107.10 and 738,132.60

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Solution

The fourth proportional to 1,188,217.20, 1,782,107.10 and 738,132.60 is: 1,107,063.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,217.20 : 1,782,107.10 = 738,132.60 : x
  2. Step 2: Convert to fraction form
    1,188,217.20/1,782,107.10 = 738,132.60/x
  3. Step 3: Cross multiply
    1,188,217.20x = 1,782,107.10 × 738,132.60
  4. Step 4: Simplify right side
    1,188,217.20x = 1,315,431,347,201.46
  5. Step 5: Solve for x
    x = 1,315,431,347,201.46/1,188,217.20
  6. Step 6: Final answer
    x = 1,107,063.04

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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.