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Finding the Fourth Proportional to 478,540.04, 660,361.41 and 263,645.42

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Solution

The fourth proportional to 478,540.04, 660,361.41 and 263,645.42 is: 363,817.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,540.04 : 660,361.41 = 263,645.42 : x
  2. Step 2: Convert to fraction form
    478,540.04/660,361.41 = 263,645.42/x
  3. Step 3: Cross multiply
    478,540.04x = 660,361.41 × 263,645.42
  4. Step 4: Simplify right side
    478,540.04x = 174,101,257,989.44
  5. Step 5: Solve for x
    x = 174,101,257,989.44/478,540.04
  6. Step 6: Final answer
    x = 363,817.54

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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.