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Finding the Third Proportional to 368,557 and 555,432

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Solution

The third proportional to 368,557 and 555,432 is: 837,061.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,557 : 555,432 = 555,432 : x
  2. Step 2: Convert to fraction form
    368,557/555,432 = 555,432/x
  3. Step 3: Cross multiply
    368,557x = 555,432 × 555,432
  4. Step 4: Simplify right side
    368,557x = 308,504,706,624
  5. Step 5: Solve for x
    x = 308,504,706,624/368,557
  6. Step 6: Final answer
    x = 837,061.04

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.