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Finding the Fourth Proportional to 888,069.30, 1,330,573.05 and 413,781.90

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Solution

The fourth proportional to 888,069.30, 1,330,573.05 and 413,781.90 is: 619,959.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,069.30 : 1,330,573.05 = 413,781.90 : x
  2. Step 2: Convert to fraction form
    888,069.30/1,330,573.05 = 413,781.90/x
  3. Step 3: Cross multiply
    888,069.30x = 1,330,573.05 × 413,781.90
  4. Step 4: Simplify right side
    888,069.30x = 550,567,044,717.80
  5. Step 5: Solve for x
    x = 550,567,044,717.80/888,069.30
  6. Step 6: Final answer
    x = 619,959.55

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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.