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Finding the Fourth Proportional to 482,028.92, 665,221.69 and 275,315.36

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Solution

The fourth proportional to 482,028.92, 665,221.69 and 275,315.36 is: 379,947.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,028.92 : 665,221.69 = 275,315.36 : x
  2. Step 2: Convert to fraction form
    482,028.92/665,221.69 = 275,315.36/x
  3. Step 3: Cross multiply
    482,028.92x = 665,221.69 × 275,315.36
  4. Step 4: Simplify right side
    482,028.92x = 183,145,745,305.87
  5. Step 5: Solve for x
    x = 183,145,745,305.87/482,028.92
  6. Step 6: Final answer
    x = 379,947.63

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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.