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Finding the Fourth Proportional to 542,161.44, 748,199.20 and 300,421.39

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Solution

The fourth proportional to 542,161.44, 748,199.20 and 300,421.39 is: 414,590.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,161.44 : 748,199.20 = 300,421.39 : x
  2. Step 2: Convert to fraction form
    542,161.44/748,199.20 = 300,421.39/x
  3. Step 3: Cross multiply
    542,161.44x = 748,199.20 × 300,421.39
  4. Step 4: Simplify right side
    542,161.44x = 224,775,043,660.89
  5. Step 5: Solve for x
    x = 224,775,043,660.89/542,161.44
  6. Step 6: Final answer
    x = 414,590.61

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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.