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Finding the Fourth Proportional to 439,750.88, 606,869.76 and 248,760.80

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Solution

The fourth proportional to 439,750.88, 606,869.76 and 248,760.80 is: 343,297.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,750.88 : 606,869.76 = 248,760.80 : x
  2. Step 2: Convert to fraction form
    439,750.88/606,869.76 = 248,760.80/x
  3. Step 3: Cross multiply
    439,750.88x = 606,869.76 × 248,760.80
  4. Step 4: Simplify right side
    439,750.88x = 150,965,406,993.41
  5. Step 5: Solve for x
    x = 150,965,406,993.41/439,750.88
  6. Step 6: Final answer
    x = 343,297.57

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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.