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Finding the Third Proportional to 428,547 and 892,560

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Solution

The third proportional to 428,547 and 892,560 is: 1,858,987.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,547 : 892,560 = 892,560 : x
  2. Step 2: Convert to fraction form
    428,547/892,560 = 892,560/x
  3. Step 3: Cross multiply
    428,547x = 892,560 × 892,560
  4. Step 4: Simplify right side
    428,547x = 796,663,353,600
  5. Step 5: Solve for x
    x = 796,663,353,600/428,547
  6. Step 6: Final answer
    x = 1,858,987.12

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.