Home / 674,238.11-930,476.86-387,758.42

Finding the Fourth Proportional to 674,238.11, 930,476.86 and 387,758.42

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Solution

The fourth proportional to 674,238.11, 930,476.86 and 387,758.42 is: 535,122.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,238.11 : 930,476.86 = 387,758.42 : x
  2. Step 2: Convert to fraction form
    674,238.11/930,476.86 = 387,758.42/x
  3. Step 3: Cross multiply
    674,238.11x = 930,476.86 × 387,758.42
  4. Step 4: Simplify right side
    674,238.11x = 360,800,231,458.38
  5. Step 5: Solve for x
    x = 360,800,231,458.38/674,238.11
  6. Step 6: Final answer
    x = 535,122.87

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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.