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Finding the Fourth Proportional to 635,905.08, 877,568.58 and 349,434

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Solution

The fourth proportional to 635,905.08, 877,568.58 and 349,434 is: 482,229.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,905.08 : 877,568.58 = 349,434 : x
  2. Step 2: Convert to fraction form
    635,905.08/877,568.58 = 349,434/x
  3. Step 3: Cross multiply
    635,905.08x = 877,568.58 × 349,434
  4. Step 4: Simplify right side
    635,905.08x = 306,652,299,183.72
  5. Step 5: Solve for x
    x = 306,652,299,183.72/635,905.08
  6. Step 6: Final answer
    x = 482,229.67

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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.