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Finding the Fourth Proportional to 649,808.54, 896,375.64 and 377,846.48

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Solution

The fourth proportional to 649,808.54, 896,375.64 and 377,846.48 is: 521,218.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,808.54 : 896,375.64 = 377,846.48 : x
  2. Step 2: Convert to fraction form
    649,808.54/896,375.64 = 377,846.48/x
  3. Step 3: Cross multiply
    649,808.54x = 896,375.64 × 377,846.48
  4. Step 4: Simplify right side
    649,808.54x = 338,692,380,331.75
  5. Step 5: Solve for x
    x = 338,692,380,331.75/649,808.54
  6. Step 6: Final answer
    x = 521,218.73

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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.