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Finding the Fourth Proportional to 438,599.78, 605,267.85 and 247,625.48

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Solution

The fourth proportional to 438,599.78, 605,267.85 and 247,625.48 is: 341,723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,599.78 : 605,267.85 = 247,625.48 : x
  2. Step 2: Convert to fraction form
    438,599.78/605,267.85 = 247,625.48/x
  3. Step 3: Cross multiply
    438,599.78x = 605,267.85 × 247,625.48
  4. Step 4: Simplify right side
    438,599.78x = 149,879,741,884.82
  5. Step 5: Solve for x
    x = 149,879,741,884.82/438,599.78
  6. Step 6: Final answer
    x = 341,723.25

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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.