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Finding the Fourth Proportional to 621,687.94, 857,960.88 and 367,033.66

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Solution

The fourth proportional to 621,687.94, 857,960.88 and 367,033.66 is: 506,525.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,687.94 : 857,960.88 = 367,033.66 : x
  2. Step 2: Convert to fraction form
    621,687.94/857,960.88 = 367,033.66/x
  3. Step 3: Cross multiply
    621,687.94x = 857,960.88 × 367,033.66
  4. Step 4: Simplify right side
    621,687.94x = 314,900,521,923.22
  5. Step 5: Solve for x
    x = 314,900,521,923.22/621,687.94
  6. Step 6: Final answer
    x = 506,525.06

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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.