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Finding the Third Proportional to 482,386 and 709,128

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Solution

The third proportional to 482,386 and 709,128 is: 1,042,448.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,386 : 709,128 = 709,128 : x
  2. Step 2: Convert to fraction form
    482,386/709,128 = 709,128/x
  3. Step 3: Cross multiply
    482,386x = 709,128 × 709,128
  4. Step 4: Simplify right side
    482,386x = 502,862,520,384
  5. Step 5: Solve for x
    x = 502,862,520,384/482,386
  6. Step 6: Final answer
    x = 1,042,448.41

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.