Home / 744,912.80-1,117,655.92-345,757.60

Finding the Fourth Proportional to 744,912.80, 1,117,655.92 and 345,757.60

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Solution

The fourth proportional to 744,912.80, 1,117,655.92 and 345,757.60 is: 518,769.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,912.80 : 1,117,655.92 = 345,757.60 : x
  2. Step 2: Convert to fraction form
    744,912.80/1,117,655.92 = 345,757.60/x
  3. Step 3: Cross multiply
    744,912.80x = 1,117,655.92 × 345,757.60
  4. Step 4: Simplify right side
    744,912.80x = 386,438,028,524.99
  5. Step 5: Solve for x
    x = 386,438,028,524.99/744,912.80
  6. Step 6: Final answer
    x = 518,769.48

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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.