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Finding the Fourth Proportional to 897,747.20, 1,347,355.20 and 890,748.80

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Solution

The fourth proportional to 897,747.20, 1,347,355.20 and 890,748.80 is: 1,336,851.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,747.20 : 1,347,355.20 = 890,748.80 : x
  2. Step 2: Convert to fraction form
    897,747.20/1,347,355.20 = 890,748.80/x
  3. Step 3: Cross multiply
    897,747.20x = 1,347,355.20 × 890,748.80
  4. Step 4: Simplify right side
    897,747.20x = 1,200,155,027,573.76
  5. Step 5: Solve for x
    x = 1,200,155,027,573.76/897,747.20
  6. Step 6: Final answer
    x = 1,336,851.87

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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.