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Finding the Fourth Proportional to 636,858.44, 878,864.62 and 350,372.38

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Solution

The fourth proportional to 636,858.44, 878,864.62 and 350,372.38 is: 483,513.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,858.44 : 878,864.62 = 350,372.38 : x
  2. Step 2: Convert to fraction form
    636,858.44/878,864.62 = 350,372.38/x
  3. Step 3: Cross multiply
    636,858.44x = 878,864.62 × 350,372.38
  4. Step 4: Simplify right side
    636,858.44x = 307,929,888,607.20
  5. Step 5: Solve for x
    x = 307,929,888,607.20/636,858.44
  6. Step 6: Final answer
    x = 483,513.87

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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.