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Finding the Fourth Proportional to 542,627.55, 748,764.12 and 300,849.03

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Solution

The fourth proportional to 542,627.55, 748,764.12 and 300,849.03 is: 415,137.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,627.55 : 748,764.12 = 300,849.03 : x
  2. Step 2: Convert to fraction form
    542,627.55/748,764.12 = 300,849.03/x
  3. Step 3: Cross multiply
    542,627.55x = 748,764.12 × 300,849.03
  4. Step 4: Simplify right side
    542,627.55x = 225,264,959,200.80
  5. Step 5: Solve for x
    x = 225,264,959,200.80/542,627.55
  6. Step 6: Final answer
    x = 415,137.34

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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.