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Finding the Fourth Proportional to 478,983.85, 661,002.66 and 264,131.62

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Solution

The fourth proportional to 478,983.85, 661,002.66 and 264,131.62 is: 364,504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,983.85 : 661,002.66 = 264,131.62 : x
  2. Step 2: Convert to fraction form
    478,983.85/661,002.66 = 264,131.62/x
  3. Step 3: Cross multiply
    478,983.85x = 661,002.66 × 264,131.62
  4. Step 4: Simplify right side
    478,983.85x = 174,591,701,757.60
  5. Step 5: Solve for x
    x = 174,591,701,757.60/478,983.85
  6. Step 6: Final answer
    x = 364,504.36

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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.