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Finding the Fourth Proportional to 620,002.88, 855,574.83 and 344,378.61

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Solution

The fourth proportional to 620,002.88, 855,574.83 and 344,378.61 is: 475,226.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,002.88 : 855,574.83 = 344,378.61 : x
  2. Step 2: Convert to fraction form
    620,002.88/855,574.83 = 344,378.61/x
  3. Step 3: Cross multiply
    620,002.88x = 855,574.83 × 344,378.61
  4. Step 4: Simplify right side
    620,002.88x = 294,641,670,706.39
  5. Step 5: Solve for x
    x = 294,641,670,706.39/620,002.88
  6. Step 6: Final answer
    x = 475,226.29

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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.