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Finding the Third Proportional to 346,410 and 519,615

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Solution

The third proportional to 346,410 and 519,615 is: 779,422.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,410 : 519,615 = 519,615 : x
  2. Step 2: Convert to fraction form
    346,410/519,615 = 519,615/x
  3. Step 3: Cross multiply
    346,410x = 519,615 × 519,615
  4. Step 4: Simplify right side
    346,410x = 269,999,748,225
  5. Step 5: Solve for x
    x = 269,999,748,225/346,410
  6. Step 6: Final answer
    x = 779,422.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.