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Finding the Fourth Proportional to 404,372.65, 605,360.90 and 299,661.61

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Solution

The fourth proportional to 404,372.65, 605,360.90 and 299,661.61 is: 448,604.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,372.65 : 605,360.90 = 299,661.61 : x
  2. Step 2: Convert to fraction form
    404,372.65/605,360.90 = 299,661.61/x
  3. Step 3: Cross multiply
    404,372.65x = 605,360.90 × 299,661.61
  4. Step 4: Simplify right side
    404,372.65x = 181,403,420,426.74
  5. Step 5: Solve for x
    x = 181,403,420,426.74/404,372.65
  6. Step 6: Final answer
    x = 448,604.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.