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Finding the Fourth Proportional to 808,793.60, 1,214,065.20 and 454,499.60

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Solution

The fourth proportional to 808,793.60, 1,214,065.20 and 454,499.60 is: 682,240.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,793.60 : 1,214,065.20 = 454,499.60 : x
  2. Step 2: Convert to fraction form
    808,793.60/1,214,065.20 = 454,499.60/x
  3. Step 3: Cross multiply
    808,793.60x = 1,214,065.20 × 454,499.60
  4. Step 4: Simplify right side
    808,793.60x = 551,792,147,773.92
  5. Step 5: Solve for x
    x = 551,792,147,773.92/808,793.60
  6. Step 6: Final answer
    x = 682,240.99

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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.