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Finding the Fourth Proportional to 635,492.88, 876,976.62 and 345,101.65

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Solution

The fourth proportional to 635,492.88, 876,976.62 and 345,101.65 is: 476,238.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,492.88 : 876,976.62 = 345,101.65 : x
  2. Step 2: Convert to fraction form
    635,492.88/876,976.62 = 345,101.65/x
  3. Step 3: Cross multiply
    635,492.88x = 876,976.62 × 345,101.65
  4. Step 4: Simplify right side
    635,492.88x = 302,646,078,573.42
  5. Step 5: Solve for x
    x = 302,646,078,573.42/635,492.88
  6. Step 6: Final answer
    x = 476,238.35

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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.