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Finding the Fourth Proportional to 548,485.35, 821,251.80 and 548,485.35

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Solution

The fourth proportional to 548,485.35, 821,251.80 and 548,485.35 is: 821,251.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,485.35 : 821,251.80 = 548,485.35 : x
  2. Step 2: Convert to fraction form
    548,485.35/821,251.80 = 548,485.35/x
  3. Step 3: Cross multiply
    548,485.35x = 821,251.80 × 548,485.35
  4. Step 4: Simplify right side
    548,485.35x = 450,444,580,961.13
  5. Step 5: Solve for x
    x = 450,444,580,961.13/548,485.35
  6. Step 6: Final answer
    x = 821,251.80

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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.