Home / 681,189.24-1,020,732.66-431,346.36

Finding the Fourth Proportional to 681,189.24, 1,020,732.66 and 431,346.36

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Solution

The fourth proportional to 681,189.24, 1,020,732.66 and 431,346.36 is: 646,353.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,189.24 : 1,020,732.66 = 431,346.36 : x
  2. Step 2: Convert to fraction form
    681,189.24/1,020,732.66 = 431,346.36/x
  3. Step 3: Cross multiply
    681,189.24x = 1,020,732.66 × 431,346.36
  4. Step 4: Simplify right side
    681,189.24x = 440,289,317,424.12
  5. Step 5: Solve for x
    x = 440,289,317,424.12/681,189.24
  6. Step 6: Final answer
    x = 646,353.89

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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.