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Finding the Fourth Proportional to 978,453.39, 1,350,249.44 and 570,792.27

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Solution

The fourth proportional to 978,453.39, 1,350,249.44 and 570,792.27 is: 787,683.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,453.39 : 1,350,249.44 = 570,792.27 : x
  2. Step 2: Convert to fraction form
    978,453.39/1,350,249.44 = 570,792.27/x
  3. Step 3: Cross multiply
    978,453.39x = 1,350,249.44 × 570,792.27
  4. Step 4: Simplify right side
    978,453.39x = 770,711,940,069.87
  5. Step 5: Solve for x
    x = 770,711,940,069.87/978,453.39
  6. Step 6: Final answer
    x = 787,683.86

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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.