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Finding the Third Proportional to 351,359 and 555,817

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Solution

The third proportional to 351,359 and 555,817 is: 879,250.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,359 : 555,817 = 555,817 : x
  2. Step 2: Convert to fraction form
    351,359/555,817 = 555,817/x
  3. Step 3: Cross multiply
    351,359x = 555,817 × 555,817
  4. Step 4: Simplify right side
    351,359x = 308,932,537,489
  5. Step 5: Solve for x
    x = 308,932,537,489/351,359
  6. Step 6: Final answer
    x = 879,250.39

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.