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Finding the Third Proportional to 491,715 and 742,095

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Solution

The third proportional to 491,715 and 742,095 is: 1,119,967.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,715 : 742,095 = 742,095 : x
  2. Step 2: Convert to fraction form
    491,715/742,095 = 742,095/x
  3. Step 3: Cross multiply
    491,715x = 742,095 × 742,095
  4. Step 4: Simplify right side
    491,715x = 550,704,989,025
  5. Step 5: Solve for x
    x = 550,704,989,025/491,715
  6. Step 6: Final answer
    x = 1,119,967.85

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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.