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Finding the Fourth Proportional to 888,158.80, 1,330,707.30 and 413,871.40

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Solution

The fourth proportional to 888,158.80, 1,330,707.30 and 413,871.40 is: 620,093.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,158.80 : 1,330,707.30 = 413,871.40 : x
  2. Step 2: Convert to fraction form
    888,158.80/1,330,707.30 = 413,871.40/x
  3. Step 3: Cross multiply
    888,158.80x = 1,330,707.30 × 413,871.40
  4. Step 4: Simplify right side
    888,158.80x = 550,741,693,241.22
  5. Step 5: Solve for x
    x = 550,741,693,241.22/888,158.80
  6. Step 6: Final answer
    x = 620,093.72

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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.