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Finding the Fourth Proportional to 548,019.60, 821,640.60 and 248,643.60

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Solution

The fourth proportional to 548,019.60, 821,640.60 and 248,643.60 is: 372,789.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,019.60 : 821,640.60 = 248,643.60 : x
  2. Step 2: Convert to fraction form
    548,019.60/821,640.60 = 248,643.60/x
  3. Step 3: Cross multiply
    548,019.60x = 821,640.60 × 248,643.60
  4. Step 4: Simplify right side
    548,019.60x = 204,295,676,690.16
  5. Step 5: Solve for x
    x = 204,295,676,690.16/548,019.60
  6. Step 6: Final answer
    x = 372,789.00

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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.