Home / 679,660.50-1,019,424.90-206,349.96

Finding the Fourth Proportional to 679,660.50, 1,019,424.90 and 206,349.96

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Solution

The fourth proportional to 679,660.50, 1,019,424.90 and 206,349.96 is: 309,504.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,660.50 : 1,019,424.90 = 206,349.96 : x
  2. Step 2: Convert to fraction form
    679,660.50/1,019,424.90 = 206,349.96/x
  3. Step 3: Cross multiply
    679,660.50x = 1,019,424.90 × 206,349.96
  4. Step 4: Simplify right side
    679,660.50x = 210,358,287,338.00
  5. Step 5: Solve for x
    x = 210,358,287,338.00/679,660.50
  6. Step 6: Final answer
    x = 309,504.95

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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.