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Finding the Third Proportional to 349,009 and 553,539

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Solution

The third proportional to 349,009 and 553,539 is: 877,929.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,009 : 553,539 = 553,539 : x
  2. Step 2: Convert to fraction form
    349,009/553,539 = 553,539/x
  3. Step 3: Cross multiply
    349,009x = 553,539 × 553,539
  4. Step 4: Simplify right side
    349,009x = 306,405,424,521
  5. Step 5: Solve for x
    x = 306,405,424,521/349,009
  6. Step 6: Final answer
    x = 877,929.87

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.