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Finding the Fourth Proportional to 889,490.11, 1,227,494.73 and 481,591.90

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Solution

The fourth proportional to 889,490.11, 1,227,494.73 and 481,591.90 is: 664,595.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,490.11 : 1,227,494.73 = 481,591.90 : x
  2. Step 2: Convert to fraction form
    889,490.11/1,227,494.73 = 481,591.90/x
  3. Step 3: Cross multiply
    889,490.11x = 1,227,494.73 × 481,591.90
  4. Step 4: Simplify right side
    889,490.11x = 591,151,519,260.69
  5. Step 5: Solve for x
    x = 591,151,519,260.69/889,490.11
  6. Step 6: Final answer
    x = 664,595.94

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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.