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Finding the Fourth Proportional to 635,102.94, 876,409.42 and 376,990.77

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Solution

The fourth proportional to 635,102.94, 876,409.42 and 376,990.77 is: 520,227.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,102.94 : 876,409.42 = 376,990.77 : x
  2. Step 2: Convert to fraction form
    635,102.94/876,409.42 = 376,990.77/x
  3. Step 3: Cross multiply
    635,102.94x = 876,409.42 × 376,990.77
  4. Step 4: Simplify right side
    635,102.94x = 330,398,265,131.97
  5. Step 5: Solve for x
    x = 330,398,265,131.97/635,102.94
  6. Step 6: Final answer
    x = 520,227.89

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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.