Home / 825,346.20-1,139,449.68-631,396.56

Finding the Fourth Proportional to 825,346.20, 1,139,449.68 and 631,396.56

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Solution

The fourth proportional to 825,346.20, 1,139,449.68 and 631,396.56 is: 871,688.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,346.20 : 1,139,449.68 = 631,396.56 : x
  2. Step 2: Convert to fraction form
    825,346.20/1,139,449.68 = 631,396.56/x
  3. Step 3: Cross multiply
    825,346.20x = 1,139,449.68 × 631,396.56
  4. Step 4: Simplify right side
    825,346.20x = 719,444,608,245.10
  5. Step 5: Solve for x
    x = 719,444,608,245.10/825,346.20
  6. Step 6: Final answer
    x = 871,688.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.