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Finding the Fourth Proportional to 978,873.80, 1,468,310.70 and 605,625.80

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Solution

The fourth proportional to 978,873.80, 1,468,310.70 and 605,625.80 is: 908,438.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,873.80 : 1,468,310.70 = 605,625.80 : x
  2. Step 2: Convert to fraction form
    978,873.80/1,468,310.70 = 605,625.80/x
  3. Step 3: Cross multiply
    978,873.80x = 1,468,310.70 × 605,625.80
  4. Step 4: Simplify right side
    978,873.80x = 889,246,842,336.06
  5. Step 5: Solve for x
    x = 889,246,842,336.06/978,873.80
  6. Step 6: Final answer
    x = 908,438.70

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Why These Related Problems?

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