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Finding the Third Proportional to 329,516 and 719,440

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Solution

The third proportional to 329,516 and 719,440 is: 1,570,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,516 : 719,440 = 719,440 : x
  2. Step 2: Convert to fraction form
    329,516/719,440 = 719,440/x
  3. Step 3: Cross multiply
    329,516x = 719,440 × 719,440
  4. Step 4: Simplify right side
    329,516x = 517,593,913,600
  5. Step 5: Solve for x
    x = 517,593,913,600/329,516
  6. Step 6: Final answer
    x = 1,570,770.20

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.