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Finding the Fourth Proportional to 577,628.64, 866,445.39 and 379,204.56

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Solution

The fourth proportional to 577,628.64, 866,445.39 and 379,204.56 is: 568,808.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,628.64 : 866,445.39 = 379,204.56 : x
  2. Step 2: Convert to fraction form
    577,628.64/866,445.39 = 379,204.56/x
  3. Step 3: Cross multiply
    577,628.64x = 866,445.39 × 379,204.56
  4. Step 4: Simplify right side
    577,628.64x = 328,560,042,878.98
  5. Step 5: Solve for x
    x = 328,560,042,878.98/577,628.64
  6. Step 6: Final answer
    x = 568,808.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.