Home / 679,511.53-1,019,273.45-206,196.89

Finding the Fourth Proportional to 679,511.53, 1,019,273.45 and 206,196.89

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Solution

The fourth proportional to 679,511.53, 1,019,273.45 and 206,196.89 is: 309,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,511.53 : 1,019,273.45 = 206,196.89 : x
  2. Step 2: Convert to fraction form
    679,511.53/1,019,273.45 = 206,196.89/x
  3. Step 3: Cross multiply
    679,511.53x = 1,019,273.45 × 206,196.89
  4. Step 4: Simplify right side
    679,511.53x = 210,171,015,635.56
  5. Step 5: Solve for x
    x = 210,171,015,635.56/679,511.53
  6. Step 6: Final answer
    x = 309,297.20

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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.