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Finding the Fourth Proportional to 496,329.22, 684,909.32 and 281,489.28

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Solution

The fourth proportional to 496,329.22, 684,909.32 and 281,489.28 is: 388,441.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,329.22 : 684,909.32 = 281,489.28 : x
  2. Step 2: Convert to fraction form
    496,329.22/684,909.32 = 281,489.28/x
  3. Step 3: Cross multiply
    496,329.22x = 684,909.32 × 281,489.28
  4. Step 4: Simplify right side
    496,329.22x = 192,794,628,959.61
  5. Step 5: Solve for x
    x = 192,794,628,959.61/496,329.22
  6. Step 6: Final answer
    x = 388,441.02

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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.