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Finding the Third Proportional to 523,515 and 830,310

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Solution

The third proportional to 523,515 and 830,310 is: 1,316,895.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,515 : 830,310 = 830,310 : x
  2. Step 2: Convert to fraction form
    523,515/830,310 = 830,310/x
  3. Step 3: Cross multiply
    523,515x = 830,310 × 830,310
  4. Step 4: Simplify right side
    523,515x = 689,414,696,100
  5. Step 5: Solve for x
    x = 689,414,696,100/523,515
  6. Step 6: Final answer
    x = 1,316,895.78

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.