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Finding the Fourth Proportional to 438,597.28, 605,264.40 and 247,622.97

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Solution

The fourth proportional to 438,597.28, 605,264.40 and 247,622.97 is: 341,719.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,597.28 : 605,264.40 = 247,622.97 : x
  2. Step 2: Convert to fraction form
    438,597.28/605,264.40 = 247,622.97/x
  3. Step 3: Cross multiply
    438,597.28x = 605,264.40 × 247,622.97
  4. Step 4: Simplify right side
    438,597.28x = 149,877,370,633.01
  5. Step 5: Solve for x
    x = 149,877,370,633.01/438,597.28
  6. Step 6: Final answer
    x = 341,719.79

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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.