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Finding the Third Proportional to 384,523 and 828,210

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Solution

The third proportional to 384,523 and 828,210 is: 1,783,851.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,523 : 828,210 = 828,210 : x
  2. Step 2: Convert to fraction form
    384,523/828,210 = 828,210/x
  3. Step 3: Cross multiply
    384,523x = 828,210 × 828,210
  4. Step 4: Simplify right side
    384,523x = 685,931,804,100
  5. Step 5: Solve for x
    x = 685,931,804,100/384,523
  6. Step 6: Final answer
    x = 1,783,851.17

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.