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Finding the Fourth Proportional to 635,876.37, 876,906.81 and 417,701.25

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Solution

The fourth proportional to 635,876.37, 876,906.81 and 417,701.25 is: 576,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,876.37 : 876,906.81 = 417,701.25 : x
  2. Step 2: Convert to fraction form
    635,876.37/876,906.81 = 417,701.25/x
  3. Step 3: Cross multiply
    635,876.37x = 876,906.81 × 417,701.25
  4. Step 4: Simplify right side
    635,876.37x = 366,285,070,670.51
  5. Step 5: Solve for x
    x = 366,285,070,670.51/635,876.37
  6. Step 6: Final answer
    x = 576,031.90

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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.