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Finding the Third Proportional to 367,386 and 556,615

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Solution

The third proportional to 367,386 and 556,615 is: 843,309.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,386 : 556,615 = 556,615 : x
  2. Step 2: Convert to fraction form
    367,386/556,615 = 556,615/x
  3. Step 3: Cross multiply
    367,386x = 556,615 × 556,615
  4. Step 4: Simplify right side
    367,386x = 309,820,258,225
  5. Step 5: Solve for x
    x = 309,820,258,225/367,386
  6. Step 6: Final answer
    x = 843,309.92

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.