Home / 679,424.68-1,019,140.80-206,110.54

Finding the Fourth Proportional to 679,424.68, 1,019,140.80 and 206,110.54

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Solution

The fourth proportional to 679,424.68, 1,019,140.80 and 206,110.54 is: 309,166.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,424.68 : 1,019,140.80 = 206,110.54 : x
  2. Step 2: Convert to fraction form
    679,424.68/1,019,140.80 = 206,110.54/x
  3. Step 3: Cross multiply
    679,424.68x = 1,019,140.80 × 206,110.54
  4. Step 4: Simplify right side
    679,424.68x = 210,055,660,624.03
  5. Step 5: Solve for x
    x = 210,055,660,624.03/679,424.68
  6. Step 6: Final answer
    x = 309,166.96

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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.