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Finding the Fourth Proportional to 450,309.73, 676,237.35 and 399,822.85

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Solution

The fourth proportional to 450,309.73, 676,237.35 and 399,822.85 is: 600,420.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,309.73 : 676,237.35 = 399,822.85 : x
  2. Step 2: Convert to fraction form
    450,309.73/676,237.35 = 399,822.85/x
  3. Step 3: Cross multiply
    450,309.73x = 676,237.35 × 399,822.85
  4. Step 4: Simplify right side
    450,309.73x = 270,375,144,553.45
  5. Step 5: Solve for x
    x = 270,375,144,553.45/450,309.73
  6. Step 6: Final answer
    x = 600,420.39

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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.