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Finding the Fourth Proportional to 635,857.76, 877,499.52 and 345,469.41

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Solution

The fourth proportional to 635,857.76, 877,499.52 and 345,469.41 is: 476,756.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,857.76 : 877,499.52 = 345,469.41 : x
  2. Step 2: Convert to fraction form
    635,857.76/877,499.52 = 345,469.41/x
  3. Step 3: Cross multiply
    635,857.76x = 877,499.52 × 345,469.41
  4. Step 4: Simplify right side
    635,857.76x = 303,149,246,035.82
  5. Step 5: Solve for x
    x = 303,149,246,035.82/635,857.76
  6. Step 6: Final answer
    x = 476,756.39

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1.5x scale

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.