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Finding the Fourth Proportional to 649,240, 973,553.46 and 379,445.50

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Solution

The fourth proportional to 649,240, 973,553.46 and 379,445.50 is: 568,989.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,240 : 973,553.46 = 379,445.50 : x
  2. Step 2: Convert to fraction form
    649,240/973,553.46 = 379,445.50/x
  3. Step 3: Cross multiply
    649,240x = 973,553.46 × 379,445.50
  4. Step 4: Simplify right side
    649,240x = 369,410,479,406.43
  5. Step 5: Solve for x
    x = 369,410,479,406.43/649,240
  6. Step 6: Final answer
    x = 568,989.09

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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.