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Finding the Fourth Proportional to 709,214.48, 978,716.22 and 454,565.67

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Solution

The fourth proportional to 709,214.48, 978,716.22 and 454,565.67 is: 627,300.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,214.48 : 978,716.22 = 454,565.67 : x
  2. Step 2: Convert to fraction form
    709,214.48/978,716.22 = 454,565.67/x
  3. Step 3: Cross multiply
    709,214.48x = 978,716.22 × 454,565.67
  4. Step 4: Simplify right side
    709,214.48x = 444,890,794,414.64
  5. Step 5: Solve for x
    x = 444,890,794,414.64/709,214.48
  6. Step 6: Final answer
    x = 627,300.77

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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.