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Finding the Third Proportional to 279,040 and 604,128

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Solution

The third proportional to 279,040 and 604,128 is: 1,307,950.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,040 : 604,128 = 604,128 : x
  2. Step 2: Convert to fraction form
    279,040/604,128 = 604,128/x
  3. Step 3: Cross multiply
    279,040x = 604,128 × 604,128
  4. Step 4: Simplify right side
    279,040x = 364,970,640,384
  5. Step 5: Solve for x
    x = 364,970,640,384/279,040
  6. Step 6: Final answer
    x = 1,307,950.98

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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.