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Finding the Fourth Proportional to 890,025.88, 1,334,891.02 and 321,297.88

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Solution

The fourth proportional to 890,025.88, 1,334,891.02 and 321,297.88 is: 481,893.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,025.88 : 1,334,891.02 = 321,297.88 : x
  2. Step 2: Convert to fraction form
    890,025.88/1,334,891.02 = 321,297.88/x
  3. Step 3: Cross multiply
    890,025.88x = 1,334,891.02 × 321,297.88
  4. Step 4: Simplify right side
    890,025.88x = 428,897,654,757.04
  5. Step 5: Solve for x
    x = 428,897,654,757.04/890,025.88
  6. Step 6: Final answer
    x = 481,893.46

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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.