Home / 874,142.43-1,206,353.75-486,957.37

Finding the Fourth Proportional to 874,142.43, 1,206,353.75 and 486,957.37

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Solution

The fourth proportional to 874,142.43, 1,206,353.75 and 486,957.37 is: 672,021.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,142.43 : 1,206,353.75 = 486,957.37 : x
  2. Step 2: Convert to fraction form
    874,142.43/1,206,353.75 = 486,957.37/x
  3. Step 3: Cross multiply
    874,142.43x = 1,206,353.75 × 486,957.37
  4. Step 4: Simplify right side
    874,142.43x = 587,442,846,954.85
  5. Step 5: Solve for x
    x = 587,442,846,954.85/874,142.43
  6. Step 6: Final answer
    x = 672,021.89

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1.5x scale

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.