Home / 669,113.13-923,257.03-378,723.27

Finding the Fourth Proportional to 669,113.13, 923,257.03 and 378,723.27

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Solution

The fourth proportional to 669,113.13, 923,257.03 and 378,723.27 is: 522,570.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,113.13 : 923,257.03 = 378,723.27 : x
  2. Step 2: Convert to fraction form
    669,113.13/923,257.03 = 378,723.27/x
  3. Step 3: Cross multiply
    669,113.13x = 923,257.03 × 378,723.27
  4. Step 4: Simplify right side
    669,113.13x = 349,658,921,452.09
  5. Step 5: Solve for x
    x = 349,658,921,452.09/669,113.13
  6. Step 6: Final answer
    x = 522,570.71

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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.