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Finding the Fourth Proportional to 325,382.06, 447,672.03 and 286,974.38

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Solution

The fourth proportional to 325,382.06, 447,672.03 and 286,974.38 is: 394,829.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,382.06 : 447,672.03 = 286,974.38 : x
  2. Step 2: Convert to fraction form
    325,382.06/447,672.03 = 286,974.38/x
  3. Step 3: Cross multiply
    325,382.06x = 447,672.03 × 286,974.38
  4. Step 4: Simplify right side
    325,382.06x = 128,470,403,252.59
  5. Step 5: Solve for x
    x = 128,470,403,252.59/325,382.06
  6. Step 6: Final answer
    x = 394,829.40

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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.