Home / 786,685.87-1,179,135.78-691,732.27

Finding the Fourth Proportional to 786,685.87, 1,179,135.78 and 691,732.27

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Solution

The fourth proportional to 786,685.87, 1,179,135.78 and 691,732.27 is: 1,036,813.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,685.87 : 1,179,135.78 = 691,732.27 : x
  2. Step 2: Convert to fraction form
    786,685.87/1,179,135.78 = 691,732.27/x
  3. Step 3: Cross multiply
    786,685.87x = 1,179,135.78 × 691,732.27
  4. Step 4: Simplify right side
    786,685.87x = 815,646,269,737.62
  5. Step 5: Solve for x
    x = 815,646,269,737.62/786,685.87
  6. Step 6: Final answer
    x = 1,036,813.17

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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.