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Finding the Fourth Proportional to 619,924.85, 855,524.71 and 344,283.96

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Solution

The fourth proportional to 619,924.85, 855,524.71 and 344,283.96 is: 475,127.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,924.85 : 855,524.71 = 344,283.96 : x
  2. Step 2: Convert to fraction form
    619,924.85/855,524.71 = 344,283.96/x
  3. Step 3: Cross multiply
    619,924.85x = 855,524.71 × 344,283.96
  4. Step 4: Simplify right side
    619,924.85x = 294,543,435,036.65
  5. Step 5: Solve for x
    x = 294,543,435,036.65/619,924.85
  6. Step 6: Final answer
    x = 475,127.65

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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.