Home / 1,121,708.50-1,682,566.35-280,260.34

Finding the Fourth Proportional to 1,121,708.50, 1,682,566.35 and 280,260.34

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Solution

The fourth proportional to 1,121,708.50, 1,682,566.35 and 280,260.34 is: 420,391.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,708.50 : 1,682,566.35 = 280,260.34 : x
  2. Step 2: Convert to fraction form
    1,121,708.50/1,682,566.35 = 280,260.34/x
  3. Step 3: Cross multiply
    1,121,708.50x = 1,682,566.35 × 280,260.34
  4. Step 4: Simplify right side
    1,121,708.50x = 471,556,617,323.56
  5. Step 5: Solve for x
    x = 471,556,617,323.56/1,121,708.50
  6. Step 6: Final answer
    x = 420,391.41

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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.