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Finding the Fourth Proportional to 798,507.60, 1,198,101.60 and 419,719.20

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Solution

The fourth proportional to 798,507.60, 1,198,101.60 and 419,719.20 is: 629,757.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,507.60 : 1,198,101.60 = 419,719.20 : x
  2. Step 2: Convert to fraction form
    798,507.60/1,198,101.60 = 419,719.20/x
  3. Step 3: Cross multiply
    798,507.60x = 1,198,101.60 × 419,719.20
  4. Step 4: Simplify right side
    798,507.60x = 502,866,245,070.72
  5. Step 5: Solve for x
    x = 502,866,245,070.72/798,507.60
  6. Step 6: Final answer
    x = 629,757.62

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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.