Home / 780,628.44-1,170,144.99-442,955.73

Finding the Fourth Proportional to 780,628.44, 1,170,144.99 and 442,955.73

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Solution

The fourth proportional to 780,628.44, 1,170,144.99 and 442,955.73 is: 663,980.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,628.44 : 1,170,144.99 = 442,955.73 : x
  2. Step 2: Convert to fraction form
    780,628.44/1,170,144.99 = 442,955.73/x
  3. Step 3: Cross multiply
    780,628.44x = 1,170,144.99 × 442,955.73
  4. Step 4: Simplify right side
    780,628.44x = 518,322,428,251.29
  5. Step 5: Solve for x
    x = 518,322,428,251.29/780,628.44
  6. Step 6: Final answer
    x = 663,980.97

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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.