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Finding the Fourth Proportional to 636,617.79, 878,527.96 and 350,131.73

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Solution

The fourth proportional to 636,617.79, 878,527.96 and 350,131.73 is: 483,179.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,617.79 : 878,527.96 = 350,131.73 : x
  2. Step 2: Convert to fraction form
    636,617.79/878,527.96 = 350,131.73/x
  3. Step 3: Cross multiply
    636,617.79x = 878,527.96 × 350,131.73
  4. Step 4: Simplify right side
    636,617.79x = 307,600,509,220.20
  5. Step 5: Solve for x
    x = 307,600,509,220.20/636,617.79
  6. Step 6: Final answer
    x = 483,179.25

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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.