Home / 679,542.52-1,019,319.90-206,227.96

Finding the Fourth Proportional to 679,542.52, 1,019,319.90 and 206,227.96

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Solution

The fourth proportional to 679,542.52, 1,019,319.90 and 206,227.96 is: 309,343.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,542.52 : 1,019,319.90 = 206,227.96 : x
  2. Step 2: Convert to fraction form
    679,542.52/1,019,319.90 = 206,227.96/x
  3. Step 3: Cross multiply
    679,542.52x = 1,019,319.90 × 206,227.96
  4. Step 4: Simplify right side
    679,542.52x = 210,212,263,564.40
  5. Step 5: Solve for x
    x = 210,212,263,564.40/679,542.52
  6. Step 6: Final answer
    x = 309,343.80

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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.