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Finding the Fourth Proportional to 403,598.41, 605,398.38 and 378,936.23

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Solution

The fourth proportional to 403,598.41, 605,398.38 and 378,936.23 is: 568,405.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,598.41 : 605,398.38 = 378,936.23 : x
  2. Step 2: Convert to fraction form
    403,598.41/605,398.38 = 378,936.23/x
  3. Step 3: Cross multiply
    403,598.41x = 605,398.38 × 378,936.23
  4. Step 4: Simplify right side
    403,598.41x = 229,407,376,738.32
  5. Step 5: Solve for x
    x = 229,407,376,738.32/403,598.41
  6. Step 6: Final answer
    x = 568,405.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.