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Finding the Fourth Proportional to 542,553.80, 748,733.22 and 300,846.56

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Solution

The fourth proportional to 542,553.80, 748,733.22 and 300,846.56 is: 415,173.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,553.80 : 748,733.22 = 300,846.56 : x
  2. Step 2: Convert to fraction form
    542,553.80/748,733.22 = 300,846.56/x
  3. Step 3: Cross multiply
    542,553.80x = 748,733.22 × 300,846.56
  4. Step 4: Simplify right side
    542,553.80x = 225,253,809,851.06
  5. Step 5: Solve for x
    x = 225,253,809,851.06/542,553.80
  6. Step 6: Final answer
    x = 415,173.23

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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.