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Finding the Fourth Proportional to 605,349.48, 835,370.10 and 379,119.72

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Solution

The fourth proportional to 605,349.48, 835,370.10 and 379,119.72 is: 523,177.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,349.48 : 835,370.10 = 379,119.72 : x
  2. Step 2: Convert to fraction form
    605,349.48/835,370.10 = 379,119.72/x
  3. Step 3: Cross multiply
    605,349.48x = 835,370.10 × 379,119.72
  4. Step 4: Simplify right side
    605,349.48x = 316,705,278,408.37
  5. Step 5: Solve for x
    x = 316,705,278,408.37/605,349.48
  6. Step 6: Final answer
    x = 523,177.58

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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.