Home / 825,709.83-1,238,267.52-285,819.41

Finding the Fourth Proportional to 825,709.83, 1,238,267.52 and 285,819.41

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Solution

The fourth proportional to 825,709.83, 1,238,267.52 and 285,819.41 is: 428,626.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,709.83 : 1,238,267.52 = 285,819.41 : x
  2. Step 2: Convert to fraction form
    825,709.83/1,238,267.52 = 285,819.41/x
  3. Step 3: Cross multiply
    825,709.83x = 1,238,267.52 × 285,819.41
  4. Step 4: Simplify right side
    825,709.83x = 353,920,885,797.23
  5. Step 5: Solve for x
    x = 353,920,885,797.23/825,709.83
  6. Step 6: Final answer
    x = 428,626.22

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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.