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Finding the Third Proportional to 584.72 and 1,387.76

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Solution

The third proportional to 584.72 and 1,387.76 is: 3,293.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.72 : 1,387.76 = 1,387.76 : x
  2. Step 2: Convert to fraction form
    584.72/1,387.76 = 1,387.76/x
  3. Step 3: Cross multiply
    584.72x = 1,387.76 × 1,387.76
  4. Step 4: Simplify right side
    584.72x = 1,925,871.75
  5. Step 5: Solve for x
    x = 1,925,871.75/584.72
  6. Step 6: Final answer
    x = 3,293.67

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.