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Finding the Fourth Proportional to 542,144.45, 748,163.77 and 300,431.06

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Solution

The fourth proportional to 542,144.45, 748,163.77 and 300,431.06 is: 414,597.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,144.45 : 748,163.77 = 300,431.06 : x
  2. Step 2: Convert to fraction form
    542,144.45/748,163.77 = 300,431.06/x
  3. Step 3: Cross multiply
    542,144.45x = 748,163.77 × 300,431.06
  4. Step 4: Simplify right side
    542,144.45x = 224,771,629,982.80
  5. Step 5: Solve for x
    x = 224,771,629,982.80/542,144.45
  6. Step 6: Final answer
    x = 414,597.31

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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.