Home / 2,209,786.49-3,315,178.45-672,919.39

Finding the Fourth Proportional to 2,209,786.49, 3,315,178.45 and 672,919.39

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Solution

The fourth proportional to 2,209,786.49, 3,315,178.45 and 672,919.39 is: 1,009,530.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209,786.49 : 3,315,178.45 = 672,919.39 : x
  2. Step 2: Convert to fraction form
    2,209,786.49/3,315,178.45 = 672,919.39/x
  3. Step 3: Cross multiply
    2,209,786.49x = 3,315,178.45 × 672,919.39
  4. Step 4: Simplify right side
    2,209,786.49x = 2,230,847,842,867.22
  5. Step 5: Solve for x
    x = 2,230,847,842,867.22/2,209,786.49
  6. Step 6: Final answer
    x = 1,009,530.95

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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.