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Finding the Fourth Proportional to 404,505, 606,755.34 and 104,985.36

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Solution

The fourth proportional to 404,505, 606,755.34 and 104,985.36 is: 157,477.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,505 : 606,755.34 = 104,985.36 : x
  2. Step 2: Convert to fraction form
    404,505/606,755.34 = 104,985.36/x
  3. Step 3: Cross multiply
    404,505x = 606,755.34 × 104,985.36
  4. Step 4: Simplify right side
    404,505x = 63,700,427,801.82
  5. Step 5: Solve for x
    x = 63,700,427,801.82/404,505
  6. Step 6: Final answer
    x = 157,477.48

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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.