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Finding the Fourth Proportional to 439,049.28, 605,916 and 269,260.32

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Solution

The fourth proportional to 439,049.28, 605,916 and 269,260.32 is: 371,596.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,049.28 : 605,916 = 269,260.32 : x
  2. Step 2: Convert to fraction form
    439,049.28/605,916 = 269,260.32/x
  3. Step 3: Cross multiply
    439,049.28x = 605,916 × 269,260.32
  4. Step 4: Simplify right side
    439,049.28x = 163,149,136,053.12
  5. Step 5: Solve for x
    x = 163,149,136,053.12/439,049.28
  6. Step 6: Final answer
    x = 371,596.41

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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.