Home / 679,516.52-1,019,280.96-206,201.90

Finding the Fourth Proportional to 679,516.52, 1,019,280.96 and 206,201.90

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Solution

The fourth proportional to 679,516.52, 1,019,280.96 and 206,201.90 is: 309,304.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,516.52 : 1,019,280.96 = 206,201.90 : x
  2. Step 2: Convert to fraction form
    679,516.52/1,019,280.96 = 206,201.90/x
  3. Step 3: Cross multiply
    679,516.52x = 1,019,280.96 × 206,201.90
  4. Step 4: Simplify right side
    679,516.52x = 210,177,670,585.82
  5. Step 5: Solve for x
    x = 210,177,670,585.82/679,516.52
  6. Step 6: Final answer
    x = 309,304.73

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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.