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Finding the Fourth Proportional to 649,806.54, 896,372.88 and 377,844.48

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Solution

The fourth proportional to 649,806.54, 896,372.88 and 377,844.48 is: 521,215.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,806.54 : 896,372.88 = 377,844.48 : x
  2. Step 2: Convert to fraction form
    649,806.54/896,372.88 = 377,844.48/x
  3. Step 3: Cross multiply
    649,806.54x = 896,372.88 × 377,844.48
  4. Step 4: Simplify right side
    649,806.54x = 338,689,544,729.70
  5. Step 5: Solve for x
    x = 338,689,544,729.70/649,806.54
  6. Step 6: Final answer
    x = 521,215.97

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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.