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Finding the Third Proportional to 454,488 and 711,396

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Solution

The third proportional to 454,488 and 711,396 is: 1,113,526.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,488 : 711,396 = 711,396 : x
  2. Step 2: Convert to fraction form
    454,488/711,396 = 711,396/x
  3. Step 3: Cross multiply
    454,488x = 711,396 × 711,396
  4. Step 4: Simplify right side
    454,488x = 506,084,268,816
  5. Step 5: Solve for x
    x = 506,084,268,816/454,488
  6. Step 6: Final answer
    x = 1,113,526.14

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.