Home / 1,219,258.52-1,821,472.08-789,291.56

Finding the Fourth Proportional to 1,219,258.52, 1,821,472.08 and 789,291.56

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Solution

The fourth proportional to 1,219,258.52, 1,821,472.08 and 789,291.56 is: 1,179,136.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,258.52 : 1,821,472.08 = 789,291.56 : x
  2. Step 2: Convert to fraction form
    1,219,258.52/1,821,472.08 = 789,291.56/x
  3. Step 3: Cross multiply
    1,219,258.52x = 1,821,472.08 × 789,291.56
  4. Step 4: Simplify right side
    1,219,258.52x = 1,437,672,539,519.65
  5. Step 5: Solve for x
    x = 1,437,672,539,519.65/1,219,258.52
  6. Step 6: Final answer
    x = 1,179,136.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.