Home / 1,180,995.12-1,771,057.10-422,631

Finding the Fourth Proportional to 1,180,995.12, 1,771,057.10 and 422,631

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Solution

The fourth proportional to 1,180,995.12, 1,771,057.10 and 422,631 is: 633,790.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,995.12 : 1,771,057.10 = 422,631 : x
  2. Step 2: Convert to fraction form
    1,180,995.12/1,771,057.10 = 422,631/x
  3. Step 3: Cross multiply
    1,180,995.12x = 1,771,057.10 × 422,631
  4. Step 4: Simplify right side
    1,180,995.12x = 748,503,634,286.68
  5. Step 5: Solve for x
    x = 748,503,634,286.68/1,180,995.12
  6. Step 6: Final answer
    x = 633,790.62

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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.