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Finding the Fourth Proportional to 888,157.55, 1,330,705.43 and 413,870.15

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Solution

The fourth proportional to 888,157.55, 1,330,705.43 and 413,870.15 is: 620,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,157.55 : 1,330,705.43 = 413,870.15 : x
  2. Step 2: Convert to fraction form
    888,157.55/1,330,705.43 = 413,870.15/x
  3. Step 3: Cross multiply
    888,157.55x = 1,330,705.43 × 413,870.15
  4. Step 4: Simplify right side
    888,157.55x = 550,739,253,850.56
  5. Step 5: Solve for x
    x = 550,739,253,850.56/888,157.55
  6. Step 6: Final answer
    x = 620,091.85

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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.