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Finding the Fourth Proportional to 636,893.46, 878,926.59 and 350,414.37

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Solution

The fourth proportional to 636,893.46, 878,926.59 and 350,414.37 is: 483,579.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,893.46 : 878,926.59 = 350,414.37 : x
  2. Step 2: Convert to fraction form
    636,893.46/878,926.59 = 350,414.37/x
  3. Step 3: Cross multiply
    636,893.46x = 878,926.59 × 350,414.37
  4. Step 4: Simplify right side
    636,893.46x = 307,988,507,311.10
  5. Step 5: Solve for x
    x = 307,988,507,311.10/636,893.46
  6. Step 6: Final answer
    x = 483,579.32

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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.