Home / 679,519.29-1,019,285.07-206,204.64

Finding the Fourth Proportional to 679,519.29, 1,019,285.07 and 206,204.64

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Solution

The fourth proportional to 679,519.29, 1,019,285.07 and 206,204.64 is: 309,308.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,519.29 : 1,019,285.07 = 206,204.64 : x
  2. Step 2: Convert to fraction form
    679,519.29/1,019,285.07 = 206,204.64/x
  3. Step 3: Cross multiply
    679,519.29x = 1,019,285.07 × 206,204.64
  4. Step 4: Simplify right side
    679,519.29x = 210,181,310,916.73
  5. Step 5: Solve for x
    x = 210,181,310,916.73/679,519.29
  6. Step 6: Final answer
    x = 309,308.82

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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.