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Finding the Third Proportional to 491.38 and 1,075.46

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Solution

The third proportional to 491.38 and 1,075.46 is: 2,353.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.38 : 1,075.46 = 1,075.46 : x
  2. Step 2: Convert to fraction form
    491.38/1,075.46 = 1,075.46/x
  3. Step 3: Cross multiply
    491.38x = 1,075.46 × 1,075.46
  4. Step 4: Simplify right side
    491.38x = 1,156,624.63
  5. Step 5: Solve for x
    x = 1,156,624.63/491.38
  6. Step 6: Final answer
    x = 2,353.83

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.