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Finding the Fourth Proportional to 548,844.80, 823,785.60 and 338,892.80

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Solution

The fourth proportional to 548,844.80, 823,785.60 and 338,892.80 is: 508,659.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,844.80 : 823,785.60 = 338,892.80 : x
  2. Step 2: Convert to fraction form
    548,844.80/823,785.60 = 338,892.80/x
  3. Step 3: Cross multiply
    548,844.80x = 823,785.60 × 338,892.80
  4. Step 4: Simplify right side
    548,844.80x = 279,175,008,583.68
  5. Step 5: Solve for x
    x = 279,175,008,583.68/548,844.80
  6. Step 6: Final answer
    x = 508,659.29

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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.