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Finding the Fourth Proportional to 636,744.53, 878,709.53 and 350,286.41

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Solution

The fourth proportional to 636,744.53, 878,709.53 and 350,286.41 is: 483,396.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,744.53 : 878,709.53 = 350,286.41 : x
  2. Step 2: Convert to fraction form
    636,744.53/878,709.53 = 350,286.41/x
  3. Step 3: Cross multiply
    636,744.53x = 878,709.53 × 350,286.41
  4. Step 4: Simplify right side
    636,744.53x = 307,800,006,696.49
  5. Step 5: Solve for x
    x = 307,800,006,696.49/636,744.53
  6. Step 6: Final answer
    x = 483,396.39

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1.5x scale

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.