Home / 324,366.33-447,836.15-290,315.76

Finding the Fourth Proportional to 324,366.33, 447,836.15 and 290,315.76

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Solution

The fourth proportional to 324,366.33, 447,836.15 and 290,315.76 is: 400,824.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,366.33 : 447,836.15 = 290,315.76 : x
  2. Step 2: Convert to fraction form
    324,366.33/447,836.15 = 290,315.76/x
  3. Step 3: Cross multiply
    324,366.33x = 447,836.15 × 290,315.76
  4. Step 4: Simplify right side
    324,366.33x = 130,013,890,791.15
  5. Step 5: Solve for x
    x = 130,013,890,791.15/324,366.33
  6. Step 6: Final answer
    x = 400,824.25

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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.