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Finding the Fourth Proportional to 1,764,346.60, 2,647,902.30 and 817,834.60

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Solution

The fourth proportional to 1,764,346.60, 2,647,902.30 and 817,834.60 is: 1,227,392.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764,346.60 : 2,647,902.30 = 817,834.60 : x
  2. Step 2: Convert to fraction form
    1,764,346.60/2,647,902.30 = 817,834.60/x
  3. Step 3: Cross multiply
    1,764,346.60x = 2,647,902.30 × 817,834.60
  4. Step 4: Simplify right side
    1,764,346.60x = 2,165,546,118,359.58
  5. Step 5: Solve for x
    x = 2,165,546,118,359.58/1,764,346.60
  6. Step 6: Final answer
    x = 1,227,392.69

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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.