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Finding the Fourth Proportional to 636,866.82, 878,874.84 and 350,386.29

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Solution

The fourth proportional to 636,866.82, 878,874.84 and 350,386.29 is: 483,532.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,866.82 : 878,874.84 = 350,386.29 : x
  2. Step 2: Convert to fraction form
    636,866.82/878,874.84 = 350,386.29/x
  3. Step 3: Cross multiply
    636,866.82x = 878,874.84 × 350,386.29
  4. Step 4: Simplify right side
    636,866.82x = 307,945,694,561.94
  5. Step 5: Solve for x
    x = 307,945,694,561.94/636,866.82
  6. Step 6: Final answer
    x = 483,532.33

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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.