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Finding the Fourth Proportional to 702,771.36, 969,824.88 and 380,481.54

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Solution

The fourth proportional to 702,771.36, 969,824.88 and 380,481.54 is: 525,064.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,771.36 : 969,824.88 = 380,481.54 : x
  2. Step 2: Convert to fraction form
    702,771.36/969,824.88 = 380,481.54/x
  3. Step 3: Cross multiply
    702,771.36x = 969,824.88 × 380,481.54
  4. Step 4: Simplify right side
    702,771.36x = 369,000,463,872.72
  5. Step 5: Solve for x
    x = 369,000,463,872.72/702,771.36
  6. Step 6: Final answer
    x = 525,064.74

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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.