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Finding the Third Proportional to 336,664 and 517,440

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Solution

The third proportional to 336,664 and 517,440 is: 795,285.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,664 : 517,440 = 517,440 : x
  2. Step 2: Convert to fraction form
    336,664/517,440 = 517,440/x
  3. Step 3: Cross multiply
    336,664x = 517,440 × 517,440
  4. Step 4: Simplify right side
    336,664x = 267,744,153,600
  5. Step 5: Solve for x
    x = 267,744,153,600/336,664
  6. Step 6: Final answer
    x = 795,285.96

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.