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Finding the Third Proportional to 492,083 and 628,774

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Solution

The third proportional to 492,083 and 628,774 is: 803,435.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,083 : 628,774 = 628,774 : x
  2. Step 2: Convert to fraction form
    492,083/628,774 = 628,774/x
  3. Step 3: Cross multiply
    492,083x = 628,774 × 628,774
  4. Step 4: Simplify right side
    492,083x = 395,356,743,076
  5. Step 5: Solve for x
    x = 395,356,743,076/492,083
  6. Step 6: Final answer
    x = 803,435.08

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.