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Finding the Third Proportional to 405,735 and 631,566

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Solution

The third proportional to 405,735 and 631,566 is: 983,093.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,735 : 631,566 = 631,566 : x
  2. Step 2: Convert to fraction form
    405,735/631,566 = 631,566/x
  3. Step 3: Cross multiply
    405,735x = 631,566 × 631,566
  4. Step 4: Simplify right side
    405,735x = 398,875,612,356
  5. Step 5: Solve for x
    x = 398,875,612,356/405,735
  6. Step 6: Final answer
    x = 983,093.92

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.