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Finding the Fourth Proportional to 889,489.11, 1,227,493.35 and 481,590.90

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Solution

The fourth proportional to 889,489.11, 1,227,493.35 and 481,590.90 is: 664,594.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,489.11 : 1,227,493.35 = 481,590.90 : x
  2. Step 2: Convert to fraction form
    889,489.11/1,227,493.35 = 481,590.90/x
  3. Step 3: Cross multiply
    889,489.11x = 1,227,493.35 × 481,590.90
  4. Step 4: Simplify right side
    889,489.11x = 591,149,627,170.52
  5. Step 5: Solve for x
    x = 591,149,627,170.52/889,489.11
  6. Step 6: Final answer
    x = 664,594.56

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.