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Finding the Fourth Proportional to 438,876.63, 605,244.15 and 336,906.54

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Solution

The fourth proportional to 438,876.63, 605,244.15 and 336,906.54 is: 464,619.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,876.63 : 605,244.15 = 336,906.54 : x
  2. Step 2: Convert to fraction form
    438,876.63/605,244.15 = 336,906.54/x
  3. Step 3: Cross multiply
    438,876.63x = 605,244.15 × 336,906.54
  4. Step 4: Simplify right side
    438,876.63x = 203,910,712,431.74
  5. Step 5: Solve for x
    x = 203,910,712,431.74/438,876.63
  6. Step 6: Final answer
    x = 464,619.66

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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.