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Finding the Fourth Proportional to 665,989.48, 919,046.82 and 364,177

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Solution

The fourth proportional to 665,989.48, 919,046.82 and 364,177 is: 502,554.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,989.48 : 919,046.82 = 364,177 : x
  2. Step 2: Convert to fraction form
    665,989.48/919,046.82 = 364,177/x
  3. Step 3: Cross multiply
    665,989.48x = 919,046.82 × 364,177
  4. Step 4: Simplify right side
    665,989.48x = 334,695,713,767.14
  5. Step 5: Solve for x
    x = 334,695,713,767.14/665,989.48
  6. Step 6: Final answer
    x = 502,554.06

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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.