Home / 408,019.68-611,511.30-230,626.44

Finding the Fourth Proportional to 408,019.68, 611,511.30 and 230,626.44

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Solution

The fourth proportional to 408,019.68, 611,511.30 and 230,626.44 is: 345,646.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,019.68 : 611,511.30 = 230,626.44 : x
  2. Step 2: Convert to fraction form
    408,019.68/611,511.30 = 230,626.44/x
  3. Step 3: Cross multiply
    408,019.68x = 611,511.30 × 230,626.44
  4. Step 4: Simplify right side
    408,019.68x = 141,030,674,138.77
  5. Step 5: Solve for x
    x = 141,030,674,138.77/408,019.68
  6. Step 6: Final answer
    x = 345,646.74

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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.