Home / 856,077.39-1,283,016.78-322,963.20

Finding the Fourth Proportional to 856,077.39, 1,283,016.78 and 322,963.20

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Solution

The fourth proportional to 856,077.39, 1,283,016.78 and 322,963.20 is: 484,030.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,077.39 : 1,283,016.78 = 322,963.20 : x
  2. Step 2: Convert to fraction form
    856,077.39/1,283,016.78 = 322,963.20/x
  3. Step 3: Cross multiply
    856,077.39x = 1,283,016.78 × 322,963.20
  4. Step 4: Simplify right side
    856,077.39x = 414,367,204,922.50
  5. Step 5: Solve for x
    x = 414,367,204,922.50/856,077.39
  6. Step 6: Final answer
    x = 484,030.08

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1.5x scale

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.