Home / 740,321.44-1,021,645.92-400,791.04

Finding the Fourth Proportional to 740,321.44, 1,021,645.92 and 400,791.04

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Solution

The fourth proportional to 740,321.44, 1,021,645.92 and 400,791.04 is: 553,092.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,321.44 : 1,021,645.92 = 400,791.04 : x
  2. Step 2: Convert to fraction form
    740,321.44/1,021,645.92 = 400,791.04/x
  3. Step 3: Cross multiply
    740,321.44x = 1,021,645.92 × 400,791.04
  4. Step 4: Simplify right side
    740,321.44x = 409,466,530,788.56
  5. Step 5: Solve for x
    x = 409,466,530,788.56/740,321.44
  6. Step 6: Final answer
    x = 553,092.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.