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Finding the Fourth Proportional to 709,324.64, 978,867.60 and 454,675.68

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Solution

The fourth proportional to 709,324.64, 978,867.60 and 454,675.68 is: 627,452.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,324.64 : 978,867.60 = 454,675.68 : x
  2. Step 2: Convert to fraction form
    709,324.64/978,867.60 = 454,675.68/x
  3. Step 3: Cross multiply
    709,324.64x = 978,867.60 × 454,675.68
  4. Step 4: Simplify right side
    709,324.64x = 445,067,291,659.97
  5. Step 5: Solve for x
    x = 445,067,291,659.97/709,324.64
  6. Step 6: Final answer
    x = 627,452.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.