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Finding the Fourth Proportional to 635,384.64, 876,846.08 and 345,008.56

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Solution

The fourth proportional to 635,384.64, 876,846.08 and 345,008.56 is: 476,120.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,384.64 : 876,846.08 = 345,008.56 : x
  2. Step 2: Convert to fraction form
    635,384.64/876,846.08 = 345,008.56/x
  3. Step 3: Cross multiply
    635,384.64x = 876,846.08 × 345,008.56
  4. Step 4: Simplify right side
    635,384.64x = 302,519,403,402.45
  5. Step 5: Solve for x
    x = 302,519,403,402.45/635,384.64
  6. Step 6: Final answer
    x = 476,120.11

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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.