Home / 803,426.89-1,205,147.39-204,388.68

Finding the Fourth Proportional to 803,426.89, 1,205,147.39 and 204,388.68

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Solution

The fourth proportional to 803,426.89, 1,205,147.39 and 204,388.68 is: 306,584.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,426.89 : 1,205,147.39 = 204,388.68 : x
  2. Step 2: Convert to fraction form
    803,426.89/1,205,147.39 = 204,388.68/x
  3. Step 3: Cross multiply
    803,426.89x = 1,205,147.39 × 204,388.68
  4. Step 4: Simplify right side
    803,426.89x = 246,318,484,247.55
  5. Step 5: Solve for x
    x = 246,318,484,247.55/803,426.89
  6. Step 6: Final answer
    x = 306,584.81

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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.