Home / 1,231,370.40-1,843,556.40-1,105,399.20

Finding the Fourth Proportional to 1,231,370.40, 1,843,556.40 and 1,105,399.20

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Solution

The fourth proportional to 1,231,370.40, 1,843,556.40 and 1,105,399.20 is: 1,654,957.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,370.40 : 1,843,556.40 = 1,105,399.20 : x
  2. Step 2: Convert to fraction form
    1,231,370.40/1,843,556.40 = 1,105,399.20/x
  3. Step 3: Cross multiply
    1,231,370.40x = 1,843,556.40 × 1,105,399.20
  4. Step 4: Simplify right side
    1,231,370.40x = 2,037,865,769,714.88
  5. Step 5: Solve for x
    x = 2,037,865,769,714.88/1,231,370.40
  6. Step 6: Final answer
    x = 1,654,957.57

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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.