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Finding the Fourth Proportional to 620,132.82, 855,825.57 and 344,522.97

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Solution

The fourth proportional to 620,132.82, 855,825.57 and 344,522.97 is: 475,465.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,132.82 : 855,825.57 = 344,522.97 : x
  2. Step 2: Convert to fraction form
    620,132.82/855,825.57 = 344,522.97/x
  3. Step 3: Cross multiply
    620,132.82x = 855,825.57 × 344,522.97
  4. Step 4: Simplify right side
    620,132.82x = 294,851,567,178.34
  5. Step 5: Solve for x
    x = 294,851,567,178.34/620,132.82
  6. Step 6: Final answer
    x = 475,465.19

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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.