Home / 542,453.05-748,629.57-300,811.42

Finding the Fourth Proportional to 542,453.05, 748,629.57 and 300,811.42

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Solution

The fourth proportional to 542,453.05, 748,629.57 and 300,811.42 is: 415,144.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,453.05 : 748,629.57 = 300,811.42 : x
  2. Step 2: Convert to fraction form
    542,453.05/748,629.57 = 300,811.42/x
  3. Step 3: Cross multiply
    542,453.05x = 748,629.57 × 300,811.42
  4. Step 4: Simplify right side
    542,453.05x = 225,196,324,005.69
  5. Step 5: Solve for x
    x = 225,196,324,005.69/542,453.05
  6. Step 6: Final answer
    x = 415,144.36

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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.