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Finding the Fourth Proportional to 900,610.80, 1,347,635.70 and 664,414.80

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Solution

The fourth proportional to 900,610.80, 1,347,635.70 and 664,414.80 is: 994,202.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,610.80 : 1,347,635.70 = 664,414.80 : x
  2. Step 2: Convert to fraction form
    900,610.80/1,347,635.70 = 664,414.80/x
  3. Step 3: Cross multiply
    900,610.80x = 1,347,635.70 × 664,414.80
  4. Step 4: Simplify right side
    900,610.80x = 895,389,104,088.36
  5. Step 5: Solve for x
    x = 895,389,104,088.36/900,610.80
  6. Step 6: Final answer
    x = 994,202.05

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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.