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Finding the Fourth Proportional to 620,006.25, 855,579.48 and 344,381.97

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Solution

The fourth proportional to 620,006.25, 855,579.48 and 344,381.97 is: 475,230.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,006.25 : 855,579.48 = 344,381.97 : x
  2. Step 2: Convert to fraction form
    620,006.25/855,579.48 = 344,381.97/x
  3. Step 3: Cross multiply
    620,006.25x = 855,579.48 × 344,381.97
  4. Step 4: Simplify right side
    620,006.25x = 294,646,146,813.98
  5. Step 5: Solve for x
    x = 294,646,146,813.98/620,006.25
  6. Step 6: Final answer
    x = 475,230.93

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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.