Home / 679,340.96-1,019,034.12-305,365.04

Finding the Fourth Proportional to 679,340.96, 1,019,034.12 and 305,365.04

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Solution

The fourth proportional to 679,340.96, 1,019,034.12 and 305,365.04 is: 458,057.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,340.96 : 1,019,034.12 = 305,365.04 : x
  2. Step 2: Convert to fraction form
    679,340.96/1,019,034.12 = 305,365.04/x
  3. Step 3: Cross multiply
    679,340.96x = 1,019,034.12 × 305,365.04
  4. Step 4: Simplify right side
    679,340.96x = 311,177,394,815.17
  5. Step 5: Solve for x
    x = 311,177,394,815.17/679,340.96
  6. Step 6: Final answer
    x = 458,057.75

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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.