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Finding the Fourth Proportional to 978,179.20, 1,467,706.20 and 472,544.80

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Solution

The fourth proportional to 978,179.20, 1,467,706.20 and 472,544.80 is: 709,028.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,179.20 : 1,467,706.20 = 472,544.80 : x
  2. Step 2: Convert to fraction form
    978,179.20/1,467,706.20 = 472,544.80/x
  3. Step 3: Cross multiply
    978,179.20x = 1,467,706.20 × 472,544.80
  4. Step 4: Simplify right side
    978,179.20x = 693,556,932,737.76
  5. Step 5: Solve for x
    x = 693,556,932,737.76/978,179.20
  6. Step 6: Final answer
    x = 709,028.50

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.