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Finding the Third Proportional to 478,764 and 708,903

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Solution

The third proportional to 478,764 and 708,903 is: 1,049,668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,764 : 708,903 = 708,903 : x
  2. Step 2: Convert to fraction form
    478,764/708,903 = 708,903/x
  3. Step 3: Cross multiply
    478,764x = 708,903 × 708,903
  4. Step 4: Simplify right side
    478,764x = 502,543,463,409
  5. Step 5: Solve for x
    x = 502,543,463,409/478,764
  6. Step 6: Final answer
    x = 1,049,668.45

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.