Home / 1,626,372.99-2,439,679.19-428,286.87

Finding the Fourth Proportional to 1,626,372.99, 2,439,679.19 and 428,286.87

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Solution

The fourth proportional to 1,626,372.99, 2,439,679.19 and 428,286.87 is: 642,461.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626,372.99 : 2,439,679.19 = 428,286.87 : x
  2. Step 2: Convert to fraction form
    1,626,372.99/2,439,679.19 = 428,286.87/x
  3. Step 3: Cross multiply
    1,626,372.99x = 2,439,679.19 × 428,286.87
  4. Step 4: Simplify right side
    1,626,372.99x = 1,044,882,561,947.80
  5. Step 5: Solve for x
    x = 1,044,882,561,947.80/1,626,372.99
  6. Step 6: Final answer
    x = 642,461.83

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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.