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Finding the Fourth Proportional to 542,394.37, 748,504.21 and 300,676.33

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Solution

The fourth proportional to 542,394.37, 748,504.21 and 300,676.33 is: 414,933.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,394.37 : 748,504.21 = 300,676.33 : x
  2. Step 2: Convert to fraction form
    542,394.37/748,504.21 = 300,676.33/x
  3. Step 3: Cross multiply
    542,394.37x = 748,504.21 × 300,676.33
  4. Step 4: Simplify right side
    542,394.37x = 225,057,493,606.45
  5. Step 5: Solve for x
    x = 225,057,493,606.45/542,394.37
  6. Step 6: Final answer
    x = 414,933.32

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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.