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Finding the Third Proportional to 286,856 and 623,464

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Solution

The third proportional to 286,856 and 623,464 is: 1,355,060.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,856 : 623,464 = 623,464 : x
  2. Step 2: Convert to fraction form
    286,856/623,464 = 623,464/x
  3. Step 3: Cross multiply
    286,856x = 623,464 × 623,464
  4. Step 4: Simplify right side
    286,856x = 388,707,359,296
  5. Step 5: Solve for x
    x = 388,707,359,296/286,856
  6. Step 6: Final answer
    x = 1,355,060.93

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.