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Finding the Fourth Proportional to 783,204.64, 1,080,996.24 and 443,860

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Solution

The fourth proportional to 783,204.64, 1,080,996.24 and 443,860 is: 612,625.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,204.64 : 1,080,996.24 = 443,860 : x
  2. Step 2: Convert to fraction form
    783,204.64/1,080,996.24 = 443,860/x
  3. Step 3: Cross multiply
    783,204.64x = 1,080,996.24 × 443,860
  4. Step 4: Simplify right side
    783,204.64x = 479,810,991,086.40
  5. Step 5: Solve for x
    x = 479,810,991,086.40/783,204.64
  6. Step 6: Final answer
    x = 612,625.32

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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.