Home / 324,323.60-447,320.27-279,077.40

Finding the Fourth Proportional to 324,323.60, 447,320.27 and 279,077.40

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Solution

The fourth proportional to 324,323.60, 447,320.27 and 279,077.40 is: 384,914.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,323.60 : 447,320.27 = 279,077.40 : x
  2. Step 2: Convert to fraction form
    324,323.60/447,320.27 = 279,077.40/x
  3. Step 3: Cross multiply
    324,323.60x = 447,320.27 × 279,077.40
  4. Step 4: Simplify right side
    324,323.60x = 124,836,978,616.59
  5. Step 5: Solve for x
    x = 124,836,978,616.59/324,323.60
  6. Step 6: Final answer
    x = 384,914.88

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1.5x scale

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.