Home / 786,683.37-1,179,132.03-691,729.77

Finding the Fourth Proportional to 786,683.37, 1,179,132.03 and 691,729.77

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Solution

The fourth proportional to 786,683.37, 1,179,132.03 and 691,729.77 is: 1,036,809.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,683.37 : 1,179,132.03 = 691,729.77 : x
  2. Step 2: Convert to fraction form
    786,683.37/1,179,132.03 = 691,729.77/x
  3. Step 3: Cross multiply
    786,683.37x = 1,179,132.03 × 691,729.77
  4. Step 4: Simplify right side
    786,683.37x = 815,640,727,911.53
  5. Step 5: Solve for x
    x = 815,640,727,911.53/786,683.37
  6. Step 6: Final answer
    x = 1,036,809.42

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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.