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Finding the Fourth Proportional to 620,076.82, 855,791.58 and 344,496.46

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Solution

The fourth proportional to 620,076.82, 855,791.58 and 344,496.46 is: 475,452.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,076.82 : 855,791.58 = 344,496.46 : x
  2. Step 2: Convert to fraction form
    620,076.82/855,791.58 = 344,496.46/x
  3. Step 3: Cross multiply
    620,076.82x = 855,791.58 × 344,496.46
  4. Step 4: Simplify right side
    620,076.82x = 294,817,169,807.81
  5. Step 5: Solve for x
    x = 294,817,169,807.81/620,076.82
  6. Step 6: Final answer
    x = 475,452.65

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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.