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Finding the Third Proportional to 569,423 and 857,861

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Solution

The third proportional to 569,423 and 857,861 is: 1,292,405.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,423 : 857,861 = 857,861 : x
  2. Step 2: Convert to fraction form
    569,423/857,861 = 857,861/x
  3. Step 3: Cross multiply
    569,423x = 857,861 × 857,861
  4. Step 4: Simplify right side
    569,423x = 735,925,495,321
  5. Step 5: Solve for x
    x = 735,925,495,321/569,423
  6. Step 6: Final answer
    x = 1,292,405.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.