Home / 839,351.28-1,259,398.68-439,896.52

Finding the Fourth Proportional to 839,351.28, 1,259,398.68 and 439,896.52

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Solution

The fourth proportional to 839,351.28, 1,259,398.68 and 439,896.52 is: 660,039.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,351.28 : 1,259,398.68 = 439,896.52 : x
  2. Step 2: Convert to fraction form
    839,351.28/1,259,398.68 = 439,896.52/x
  3. Step 3: Cross multiply
    839,351.28x = 1,259,398.68 × 439,896.52
  4. Step 4: Simplify right side
    839,351.28x = 554,005,096,624.59
  5. Step 5: Solve for x
    x = 554,005,096,624.59/839,351.28
  6. Step 6: Final answer
    x = 660,039.62

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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.