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Finding the Fourth Proportional to 1,072.98, 1,480.93 and 607.38

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Solution

The fourth proportional to 1,072.98, 1,480.93 and 607.38 is: 838.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072.98 : 1,480.93 = 607.38 : x
  2. Step 2: Convert to fraction form
    1,072.98/1,480.93 = 607.38/x
  3. Step 3: Cross multiply
    1,072.98x = 1,480.93 × 607.38
  4. Step 4: Simplify right side
    1,072.98x = 899,487.26
  5. Step 5: Solve for x
    x = 899,487.26/1,072.98
  6. Step 6: Final answer
    x = 838.31

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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.