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Finding the Fourth Proportional to 619,926.86, 855,527.48 and 344,285.97

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Solution

The fourth proportional to 619,926.86, 855,527.48 and 344,285.97 is: 475,130.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,926.86 : 855,527.48 = 344,285.97 : x
  2. Step 2: Convert to fraction form
    619,926.86/855,527.48 = 344,285.97/x
  3. Step 3: Cross multiply
    619,926.86x = 855,527.48 × 344,285.97
  4. Step 4: Simplify right side
    619,926.86x = 294,546,106,592.03
  5. Step 5: Solve for x
    x = 294,546,106,592.03/619,926.86
  6. Step 6: Final answer
    x = 475,130.42

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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.