Home / 1,020,861.28-1,408,759.04-568,142.56

Finding the Fourth Proportional to 1,020,861.28, 1,408,759.04 and 568,142.56

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Solution

The fourth proportional to 1,020,861.28, 1,408,759.04 and 568,142.56 is: 784,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,861.28 : 1,408,759.04 = 568,142.56 : x
  2. Step 2: Convert to fraction form
    1,020,861.28/1,408,759.04 = 568,142.56/x
  3. Step 3: Cross multiply
    1,020,861.28x = 1,408,759.04 × 568,142.56
  4. Step 4: Simplify right side
    1,020,861.28x = 800,375,967,408.74
  5. Step 5: Solve for x
    x = 800,375,967,408.74/1,020,861.28
  6. Step 6: Final answer
    x = 784,020.30

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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.