Home / 814,905.22-1,222,608.13-388,984.54

Finding the Fourth Proportional to 814,905.22, 1,222,608.13 and 388,984.54

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Solution

The fourth proportional to 814,905.22, 1,222,608.13 and 388,984.54 is: 583,596.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,905.22 : 1,222,608.13 = 388,984.54 : x
  2. Step 2: Convert to fraction form
    814,905.22/1,222,608.13 = 388,984.54/x
  3. Step 3: Cross multiply
    814,905.22x = 1,222,608.13 × 388,984.54
  4. Step 4: Simplify right side
    814,905.22x = 475,575,663,132.37
  5. Step 5: Solve for x
    x = 475,575,663,132.37/814,905.22
  6. Step 6: Final answer
    x = 583,596.29

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1.5x scale

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.