Home / 756,542.57-1,044,021.89-412,378.43

Finding the Fourth Proportional to 756,542.57, 1,044,021.89 and 412,378.43

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Solution

The fourth proportional to 756,542.57, 1,044,021.89 and 412,378.43 is: 569,078.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,542.57 : 1,044,021.89 = 412,378.43 : x
  2. Step 2: Convert to fraction form
    756,542.57/1,044,021.89 = 412,378.43/x
  3. Step 3: Cross multiply
    756,542.57x = 1,044,021.89 × 412,378.43
  4. Step 4: Simplify right side
    756,542.57x = 430,532,103,694.67
  5. Step 5: Solve for x
    x = 430,532,103,694.67/756,542.57
  6. Step 6: Final answer
    x = 569,078.49

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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.