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Finding the Fourth Proportional to 636,734.16, 878,683.92 and 350,237.28

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Solution

The fourth proportional to 636,734.16, 878,683.92 and 350,237.28 is: 483,322.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,734.16 : 878,683.92 = 350,237.28 : x
  2. Step 2: Convert to fraction form
    636,734.16/878,683.92 = 350,237.28/x
  3. Step 3: Cross multiply
    636,734.16x = 878,683.92 × 350,237.28
  4. Step 4: Simplify right side
    636,734.16x = 307,747,866,120.54
  5. Step 5: Solve for x
    x = 307,747,866,120.54/636,734.16
  6. Step 6: Final answer
    x = 483,322.37

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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.