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Finding the Third Proportional to 340,904 and 734,128

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Solution

The third proportional to 340,904 and 734,128 is: 1,580,925.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,904 : 734,128 = 734,128 : x
  2. Step 2: Convert to fraction form
    340,904/734,128 = 734,128/x
  3. Step 3: Cross multiply
    340,904x = 734,128 × 734,128
  4. Step 4: Simplify right side
    340,904x = 538,943,920,384
  5. Step 5: Solve for x
    x = 538,943,920,384/340,904
  6. Step 6: Final answer
    x = 1,580,925.77

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.