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Finding the Fourth Proportional to 1,049.06, 1,447.60 and 607.11

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Solution

The fourth proportional to 1,049.06, 1,447.60 and 607.11 is: 837.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.06 : 1,447.60 = 607.11 : x
  2. Step 2: Convert to fraction form
    1,049.06/1,447.60 = 607.11/x
  3. Step 3: Cross multiply
    1,049.06x = 1,447.60 × 607.11
  4. Step 4: Simplify right side
    1,049.06x = 878,852.44
  5. Step 5: Solve for x
    x = 878,852.44/1,049.06
  6. Step 6: Final answer
    x = 837.75

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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.