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Finding the Fourth Proportional to 611,576.41, 844,003.48 and 339,645.55

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Solution

The fourth proportional to 611,576.41, 844,003.48 and 339,645.55 is: 468,726.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,576.41 : 844,003.48 = 339,645.55 : x
  2. Step 2: Convert to fraction form
    611,576.41/844,003.48 = 339,645.55/x
  3. Step 3: Cross multiply
    611,576.41x = 844,003.48 × 339,645.55
  4. Step 4: Simplify right side
    611,576.41x = 286,662,021,946.50
  5. Step 5: Solve for x
    x = 286,662,021,946.50/611,576.41
  6. Step 6: Final answer
    x = 468,726.43

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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.