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Finding the Fourth Proportional to 3,278,892.12, 4,918,333.68 and 882,739.32

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Solution

The fourth proportional to 3,278,892.12, 4,918,333.68 and 882,739.32 is: 1,324,107.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278,892.12 : 4,918,333.68 = 882,739.32 : x
  2. Step 2: Convert to fraction form
    3,278,892.12/4,918,333.68 = 882,739.32/x
  3. Step 3: Cross multiply
    3,278,892.12x = 4,918,333.68 × 882,739.32
  4. Step 4: Simplify right side
    3,278,892.12x = 4,341,606,528,216.30
  5. Step 5: Solve for x
    x = 4,341,606,528,216.30/3,278,892.12
  6. Step 6: Final answer
    x = 1,324,107.77

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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.