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Finding the Fourth Proportional to 626,571.38, 864,645.24 and 340,085.30

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Solution

The fourth proportional to 626,571.38, 864,645.24 and 340,085.30 is: 469,305.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,571.38 : 864,645.24 = 340,085.30 : x
  2. Step 2: Convert to fraction form
    626,571.38/864,645.24 = 340,085.30/x
  3. Step 3: Cross multiply
    626,571.38x = 864,645.24 × 340,085.30
  4. Step 4: Simplify right side
    626,571.38x = 294,053,135,838.97
  5. Step 5: Solve for x
    x = 294,053,135,838.97/626,571.38
  6. Step 6: Final answer
    x = 469,305.09

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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.