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Finding the Fourth Proportional to 635,613.50, 877,146.72 and 349,138.46

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Solution

The fourth proportional to 635,613.50, 877,146.72 and 349,138.46 is: 481,811.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,613.50 : 877,146.72 = 349,138.46 : x
  2. Step 2: Convert to fraction form
    635,613.50/877,146.72 = 349,138.46/x
  3. Step 3: Cross multiply
    635,613.50x = 877,146.72 × 349,138.46
  4. Step 4: Simplify right side
    635,613.50x = 306,245,655,014.85
  5. Step 5: Solve for x
    x = 306,245,655,014.85/635,613.50
  6. Step 6: Final answer
    x = 481,811.12

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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.