Home / 899,740.97-1,241,642.82-491,844.61

Finding the Fourth Proportional to 899,740.97, 1,241,642.82 and 491,844.61

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Solution

The fourth proportional to 899,740.97, 1,241,642.82 and 491,844.61 is: 678,745.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,740.97 : 1,241,642.82 = 491,844.61 : x
  2. Step 2: Convert to fraction form
    899,740.97/1,241,642.82 = 491,844.61/x
  3. Step 3: Cross multiply
    899,740.97x = 1,241,642.82 × 491,844.61
  4. Step 4: Simplify right side
    899,740.97x = 610,695,328,562.20
  5. Step 5: Solve for x
    x = 610,695,328,562.20/899,740.97
  6. Step 6: Final answer
    x = 678,745.72

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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.