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Finding the Fourth Proportional to 635,278.05, 876,685.22 and 348,816.59

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Solution

The fourth proportional to 635,278.05, 876,685.22 and 348,816.59 is: 481,367.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,278.05 : 876,685.22 = 348,816.59 : x
  2. Step 2: Convert to fraction form
    635,278.05/876,685.22 = 348,816.59/x
  3. Step 3: Cross multiply
    635,278.05x = 876,685.22 × 348,816.59
  4. Step 4: Simplify right side
    635,278.05x = 305,802,342,816.29
  5. Step 5: Solve for x
    x = 305,802,342,816.29/635,278.05
  6. Step 6: Final answer
    x = 481,367.71

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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.