Home / 873,286.88-1,205,071.44-491,240.12

Finding the Fourth Proportional to 873,286.88, 1,205,071.44 and 491,240.12

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Solution

The fourth proportional to 873,286.88, 1,205,071.44 and 491,240.12 is: 677,875.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,286.88 : 1,205,071.44 = 491,240.12 : x
  2. Step 2: Convert to fraction form
    873,286.88/1,205,071.44 = 491,240.12/x
  3. Step 3: Cross multiply
    873,286.88x = 1,205,071.44 × 491,240.12
  4. Step 4: Simplify right side
    873,286.88x = 591,979,438,794.17
  5. Step 5: Solve for x
    x = 591,979,438,794.17/873,286.88
  6. Step 6: Final answer
    x = 677,875.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.