Home / 1,299,121.16-1,948,556.44-400,321.56

Finding the Fourth Proportional to 1,299,121.16, 1,948,556.44 and 400,321.56

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Solution

The fourth proportional to 1,299,121.16, 1,948,556.44 and 400,321.56 is: 600,443.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,121.16 : 1,948,556.44 = 400,321.56 : x
  2. Step 2: Convert to fraction form
    1,299,121.16/1,948,556.44 = 400,321.56/x
  3. Step 3: Cross multiply
    1,299,121.16x = 1,948,556.44 × 400,321.56
  4. Step 4: Simplify right side
    1,299,121.16x = 780,049,153,808.85
  5. Step 5: Solve for x
    x = 780,049,153,808.85/1,299,121.16
  6. Step 6: Final answer
    x = 600,443.73

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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.