Home / 786,686.36-1,179,136.52-691,732.76

Finding the Fourth Proportional to 786,686.36, 1,179,136.52 and 691,732.76

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Solution

The fourth proportional to 786,686.36, 1,179,136.52 and 691,732.76 is: 1,036,813.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,686.36 : 1,179,136.52 = 691,732.76 : x
  2. Step 2: Convert to fraction form
    786,686.36/1,179,136.52 = 691,732.76/x
  3. Step 3: Cross multiply
    786,686.36x = 1,179,136.52 × 691,732.76
  4. Step 4: Simplify right side
    786,686.36x = 815,647,359,396.40
  5. Step 5: Solve for x
    x = 815,647,359,396.40/786,686.36
  6. Step 6: Final answer
    x = 1,036,813.91

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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.