Home / 1,487,055-2,230,578.12-422,097.96

Finding the Fourth Proportional to 1,487,055, 2,230,578.12 and 422,097.96

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Solution

The fourth proportional to 1,487,055, 2,230,578.12 and 422,097.96 is: 633,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,055 : 2,230,578.12 = 422,097.96 : x
  2. Step 2: Convert to fraction form
    1,487,055/2,230,578.12 = 422,097.96/x
  3. Step 3: Cross multiply
    1,487,055x = 2,230,578.12 × 422,097.96
  4. Step 4: Simplify right side
    1,487,055x = 941,522,474,072.64
  5. Step 5: Solve for x
    x = 941,522,474,072.64/1,487,055
  6. Step 6: Final answer
    x = 633,145.70

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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.