Home / 679,516.91-1,019,281.52-206,202.28

Finding the Fourth Proportional to 679,516.91, 1,019,281.52 and 206,202.28

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Solution

The fourth proportional to 679,516.91, 1,019,281.52 and 206,202.28 is: 309,305.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,516.91 : 1,019,281.52 = 206,202.28 : x
  2. Step 2: Convert to fraction form
    679,516.91/1,019,281.52 = 206,202.28/x
  3. Step 3: Cross multiply
    679,516.91x = 1,019,281.52 × 206,202.28
  4. Step 4: Simplify right side
    679,516.91x = 210,178,173,385.87
  5. Step 5: Solve for x
    x = 210,178,173,385.87/679,516.91
  6. Step 6: Final answer
    x = 309,305.29

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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.