Home / 647,934.78-894,327.82-376,090.26

Finding the Fourth Proportional to 647,934.78, 894,327.82 and 376,090.26

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Solution

The fourth proportional to 647,934.78, 894,327.82 and 376,090.26 is: 519,107.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,934.78 : 894,327.82 = 376,090.26 : x
  2. Step 2: Convert to fraction form
    647,934.78/894,327.82 = 376,090.26/x
  3. Step 3: Cross multiply
    647,934.78x = 894,327.82 × 376,090.26
  4. Step 4: Simplify right side
    647,934.78x = 336,347,982,349.03
  5. Step 5: Solve for x
    x = 336,347,982,349.03/647,934.78
  6. Step 6: Final answer
    x = 519,107.78

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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.