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Finding the Third Proportional to 873.66 and 1,298.63

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Solution

The third proportional to 873.66 and 1,298.63 is: 1,930.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    873.66 : 1,298.63 = 1,298.63 : x
  2. Step 2: Convert to fraction form
    873.66/1,298.63 = 1,298.63/x
  3. Step 3: Cross multiply
    873.66x = 1,298.63 × 1,298.63
  4. Step 4: Simplify right side
    873.66x = 1,686,426.89
  5. Step 5: Solve for x
    x = 1,686,426.89/873.66
  6. Step 6: Final answer
    x = 1,930.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.