Home / 764,971.20-1,055,695.92-442,618.92

Finding the Fourth Proportional to 764,971.20, 1,055,695.92 and 442,618.92

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Solution

The fourth proportional to 764,971.20, 1,055,695.92 and 442,618.92 is: 610,834.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,971.20 : 1,055,695.92 = 442,618.92 : x
  2. Step 2: Convert to fraction form
    764,971.20/1,055,695.92 = 442,618.92/x
  3. Step 3: Cross multiply
    764,971.20x = 1,055,695.92 × 442,618.92
  4. Step 4: Simplify right side
    764,971.20x = 467,270,987,958.81
  5. Step 5: Solve for x
    x = 467,270,987,958.81/764,971.20
  6. Step 6: Final answer
    x = 610,834.75

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Why These Related Problems?

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