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Finding the Third Proportional to 506,894 and 708,672

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Solution

The third proportional to 506,894 and 708,672 is: 990,771.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,894 : 708,672 = 708,672 : x
  2. Step 2: Convert to fraction form
    506,894/708,672 = 708,672/x
  3. Step 3: Cross multiply
    506,894x = 708,672 × 708,672
  4. Step 4: Simplify right side
    506,894x = 502,216,003,584
  5. Step 5: Solve for x
    x = 502,216,003,584/506,894
  6. Step 6: Final answer
    x = 990,771.25

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.