Home / 1,124,556.40-1,687,612.20-809,239.60

Finding the Fourth Proportional to 1,124,556.40, 1,687,612.20 and 809,239.60

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Solution

The fourth proportional to 1,124,556.40, 1,687,612.20 and 809,239.60 is: 1,214,418.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,556.40 : 1,687,612.20 = 809,239.60 : x
  2. Step 2: Convert to fraction form
    1,124,556.40/1,687,612.20 = 809,239.60/x
  3. Step 3: Cross multiply
    1,124,556.40x = 1,687,612.20 × 809,239.60
  4. Step 4: Simplify right side
    1,124,556.40x = 1,365,682,621,683.12
  5. Step 5: Solve for x
    x = 1,365,682,621,683.12/1,124,556.40
  6. Step 6: Final answer
    x = 1,214,418.97

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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.