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Finding the Fourth Proportional to 629,092.76, 942,974.40 and 428,916.92

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Solution

The fourth proportional to 629,092.76, 942,974.40 and 428,916.92 is: 642,922.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,092.76 : 942,974.40 = 428,916.92 : x
  2. Step 2: Convert to fraction form
    629,092.76/942,974.40 = 428,916.92/x
  3. Step 3: Cross multiply
    629,092.76x = 942,974.40 × 428,916.92
  4. Step 4: Simplify right side
    629,092.76x = 404,457,675,286.85
  5. Step 5: Solve for x
    x = 404,457,675,286.85/629,092.76
  6. Step 6: Final answer
    x = 642,922.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.