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Finding the Fourth Proportional to 790,056, 1,185,084 and 199,080

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Solution

The fourth proportional to 790,056, 1,185,084 and 199,080 is: 298,620

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,056 : 1,185,084 = 199,080 : x
  2. Step 2: Convert to fraction form
    790,056/1,185,084 = 199,080/x
  3. Step 3: Cross multiply
    790,056x = 1,185,084 × 199,080
  4. Step 4: Simplify right side
    790,056x = 235,926,522,720
  5. Step 5: Solve for x
    x = 235,926,522,720/790,056
  6. Step 6: Final answer
    x = 298,620

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.