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Finding the Fourth Proportional to 619,182.90, 854,481.09 and 374,133.66

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Solution

The fourth proportional to 619,182.90, 854,481.09 and 374,133.66 is: 516,309.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,182.90 : 854,481.09 = 374,133.66 : x
  2. Step 2: Convert to fraction form
    619,182.90/854,481.09 = 374,133.66/x
  3. Step 3: Cross multiply
    619,182.90x = 854,481.09 × 374,133.66
  4. Step 4: Simplify right side
    619,182.90x = 319,690,137,602.49
  5. Step 5: Solve for x
    x = 319,690,137,602.49/619,182.90
  6. Step 6: Final answer
    x = 516,309.70

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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.