Home / 679,667.99-1,019,436.17-206,357.45

Finding the Fourth Proportional to 679,667.99, 1,019,436.17 and 206,357.45

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Solution

The fourth proportional to 679,667.99, 1,019,436.17 and 206,357.45 is: 309,516.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,667.99 : 1,019,436.17 = 206,357.45 : x
  2. Step 2: Convert to fraction form
    679,667.99/1,019,436.17 = 206,357.45/x
  3. Step 3: Cross multiply
    679,667.99x = 1,019,436.17 × 206,357.45
  4. Step 4: Simplify right side
    679,667.99x = 210,368,242,350.00
  5. Step 5: Solve for x
    x = 210,368,242,350.00/679,667.99
  6. Step 6: Final answer
    x = 309,516.19

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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.