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Finding the Third Proportional to 455,664 and 707,368

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Solution

The third proportional to 455,664 and 707,368 is: 1,098,110.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,664 : 707,368 = 707,368 : x
  2. Step 2: Convert to fraction form
    455,664/707,368 = 707,368/x
  3. Step 3: Cross multiply
    455,664x = 707,368 × 707,368
  4. Step 4: Simplify right side
    455,664x = 500,369,487,424
  5. Step 5: Solve for x
    x = 500,369,487,424/455,664
  6. Step 6: Final answer
    x = 1,098,110.64

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.