Home / 1,207,439.46-1,811,221.20-308,889

Finding the Fourth Proportional to 1,207,439.46, 1,811,221.20 and 308,889

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Solution

The fourth proportional to 1,207,439.46, 1,811,221.20 and 308,889 is: 463,349.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,439.46 : 1,811,221.20 = 308,889 : x
  2. Step 2: Convert to fraction form
    1,207,439.46/1,811,221.20 = 308,889/x
  3. Step 3: Cross multiply
    1,207,439.46x = 1,811,221.20 × 308,889
  4. Step 4: Simplify right side
    1,207,439.46x = 559,466,305,246.80
  5. Step 5: Solve for x
    x = 559,466,305,246.80/1,207,439.46
  6. Step 6: Final answer
    x = 463,349.36

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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.