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Finding the Fourth Proportional to 636,674.87, 954,908.49 and 187,290.62

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Solution

The fourth proportional to 636,674.87, 954,908.49 and 187,290.62 is: 280,905.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,674.87 : 954,908.49 = 187,290.62 : x
  2. Step 2: Convert to fraction form
    636,674.87/954,908.49 = 187,290.62/x
  3. Step 3: Cross multiply
    636,674.87x = 954,908.49 × 187,290.62
  4. Step 4: Simplify right side
    636,674.87x = 178,845,403,135.36
  5. Step 5: Solve for x
    x = 178,845,403,135.36/636,674.87
  6. Step 6: Final answer
    x = 280,905.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.