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Finding the Fourth Proportional to 619,179.91, 854,476.96 and 374,130.66

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Solution

The fourth proportional to 619,179.91, 854,476.96 and 374,130.66 is: 516,305.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,179.91 : 854,476.96 = 374,130.66 : x
  2. Step 2: Convert to fraction form
    619,179.91/854,476.96 = 374,130.66/x
  3. Step 3: Cross multiply
    619,179.91x = 854,476.96 × 374,130.66
  4. Step 4: Simplify right side
    619,179.91x = 319,686,028,891.35
  5. Step 5: Solve for x
    x = 319,686,028,891.35/619,179.91
  6. Step 6: Final answer
    x = 516,305.56

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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.