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Finding the Fourth Proportional to 738,608.20, 1,107,912.30 and 738,608.20

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Solution

The fourth proportional to 738,608.20, 1,107,912.30 and 738,608.20 is: 1,107,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,608.20 : 1,107,912.30 = 738,608.20 : x
  2. Step 2: Convert to fraction form
    738,608.20/1,107,912.30 = 738,608.20/x
  3. Step 3: Cross multiply
    738,608.20x = 1,107,912.30 × 738,608.20
  4. Step 4: Simplify right side
    738,608.20x = 818,313,109,660.86
  5. Step 5: Solve for x
    x = 818,313,109,660.86/738,608.20
  6. Step 6: Final answer
    x = 1,107,912.30

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1.5x scale

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.