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Finding the Fourth Proportional to 429,755.67, 644,135.23 and 404,844.37

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Solution

The fourth proportional to 429,755.67, 644,135.23 and 404,844.37 is: 606,797.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,755.67 : 644,135.23 = 404,844.37 : x
  2. Step 2: Convert to fraction form
    429,755.67/644,135.23 = 404,844.37/x
  3. Step 3: Cross multiply
    429,755.67x = 644,135.23 × 404,844.37
  4. Step 4: Simplify right side
    429,755.67x = 260,774,521,127.50
  5. Step 5: Solve for x
    x = 260,774,521,127.50/429,755.67
  6. Step 6: Final answer
    x = 606,797.17

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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.