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Finding the Fourth Proportional to 636,446.36, 878,301.42 and 364,539.08

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Solution

The fourth proportional to 636,446.36, 878,301.42 and 364,539.08 is: 503,067.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,446.36 : 878,301.42 = 364,539.08 : x
  2. Step 2: Convert to fraction form
    636,446.36/878,301.42 = 364,539.08/x
  3. Step 3: Cross multiply
    636,446.36x = 878,301.42 × 364,539.08
  4. Step 4: Simplify right side
    636,446.36x = 320,175,191,609.49
  5. Step 5: Solve for x
    x = 320,175,191,609.49/636,446.36
  6. Step 6: Final answer
    x = 503,067.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.