Home / 679,516.04-1,019,280.20-206,201.39

Finding the Fourth Proportional to 679,516.04, 1,019,280.20 and 206,201.39

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Solution

The fourth proportional to 679,516.04, 1,019,280.20 and 206,201.39 is: 309,303.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,516.04 : 1,019,280.20 = 206,201.39 : x
  2. Step 2: Convert to fraction form
    679,516.04/1,019,280.20 = 206,201.39/x
  3. Step 3: Cross multiply
    679,516.04x = 1,019,280.20 × 206,201.39
  4. Step 4: Simplify right side
    679,516.04x = 210,176,987,912.07
  5. Step 5: Solve for x
    x = 210,176,987,912.07/679,516.04
  6. Step 6: Final answer
    x = 309,303.94

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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.