Home / 756,299.88-1,043,680.32-412,138.80

Finding the Fourth Proportional to 756,299.88, 1,043,680.32 and 412,138.80

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Solution

The fourth proportional to 756,299.88, 1,043,680.32 and 412,138.80 is: 568,744.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,299.88 : 1,043,680.32 = 412,138.80 : x
  2. Step 2: Convert to fraction form
    756,299.88/1,043,680.32 = 412,138.80/x
  3. Step 3: Cross multiply
    756,299.88x = 1,043,680.32 × 412,138.80
  4. Step 4: Simplify right side
    756,299.88x = 430,141,154,668.42
  5. Step 5: Solve for x
    x = 430,141,154,668.42/756,299.88
  6. Step 6: Final answer
    x = 568,744.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.