Home / 1,478,431.80-2,216,772.90-769,843.80

Finding the Fourth Proportional to 1,478,431.80, 2,216,772.90 and 769,843.80

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Solution

The fourth proportional to 1,478,431.80, 2,216,772.90 and 769,843.80 is: 1,154,310.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,431.80 : 2,216,772.90 = 769,843.80 : x
  2. Step 2: Convert to fraction form
    1,478,431.80/2,216,772.90 = 769,843.80/x
  3. Step 3: Cross multiply
    1,478,431.80x = 2,216,772.90 × 769,843.80
  4. Step 4: Simplify right side
    1,478,431.80x = 1,706,568,873,073.02
  5. Step 5: Solve for x
    x = 1,706,568,873,073.02/1,478,431.80
  6. Step 6: Final answer
    x = 1,154,310.18

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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.