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Finding the Fourth Proportional to 635,754.97, 877,338.18 and 349,268.89

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Solution

The fourth proportional to 635,754.97, 877,338.18 and 349,268.89 is: 481,989.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,754.97 : 877,338.18 = 349,268.89 : x
  2. Step 2: Convert to fraction form
    635,754.97/877,338.18 = 349,268.89/x
  3. Step 3: Cross multiply
    635,754.97x = 877,338.18 × 349,268.89
  4. Step 4: Simplify right side
    635,754.97x = 306,426,932,283.22
  5. Step 5: Solve for x
    x = 306,426,932,283.22/635,754.97
  6. Step 6: Final answer
    x = 481,989.05

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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.