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Finding the Fourth Proportional to 634,379.96, 875,469.62 and 347,910.48

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Solution

The fourth proportional to 634,379.96, 875,469.62 and 347,910.48 is: 480,130.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,379.96 : 875,469.62 = 347,910.48 : x
  2. Step 2: Convert to fraction form
    634,379.96/875,469.62 = 347,910.48/x
  3. Step 3: Cross multiply
    634,379.96x = 875,469.62 × 347,910.48
  4. Step 4: Simplify right side
    634,379.96x = 304,585,055,719.62
  5. Step 5: Solve for x
    x = 304,585,055,719.62/634,379.96
  6. Step 6: Final answer
    x = 480,130.32

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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.