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Finding the Fourth Proportional to 898,408.40, 1,347,612.60 and 449,198.60

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Solution

The fourth proportional to 898,408.40, 1,347,612.60 and 449,198.60 is: 673,797.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,408.40 : 1,347,612.60 = 449,198.60 : x
  2. Step 2: Convert to fraction form
    898,408.40/1,347,612.60 = 449,198.60/x
  3. Step 3: Cross multiply
    898,408.40x = 1,347,612.60 × 449,198.60
  4. Step 4: Simplify right side
    898,408.40x = 605,345,693,262.36
  5. Step 5: Solve for x
    x = 605,345,693,262.36/898,408.40
  6. Step 6: Final answer
    x = 673,797.90

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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.