Home / 894,171.10-1,341,847.54-420,991.78

Finding the Fourth Proportional to 894,171.10, 1,341,847.54 and 420,991.78

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Solution

The fourth proportional to 894,171.10, 1,341,847.54 and 420,991.78 is: 631,765.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,171.10 : 1,341,847.54 = 420,991.78 : x
  2. Step 2: Convert to fraction form
    894,171.10/1,341,847.54 = 420,991.78/x
  3. Step 3: Cross multiply
    894,171.10x = 1,341,847.54 × 420,991.78
  4. Step 4: Simplify right side
    894,171.10x = 564,906,784,353.22
  5. Step 5: Solve for x
    x = 564,906,784,353.22/894,171.10
  6. Step 6: Final answer
    x = 631,765.87

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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.