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Finding the Fourth Proportional to 495,992.64, 684,523.37 and 281,109.65

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Solution

The fourth proportional to 495,992.64, 684,523.37 and 281,109.65 is: 387,961.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,992.64 : 684,523.37 = 281,109.65 : x
  2. Step 2: Convert to fraction form
    495,992.64/684,523.37 = 281,109.65/x
  3. Step 3: Cross multiply
    495,992.64x = 684,523.37 × 281,109.65
  4. Step 4: Simplify right side
    495,992.64x = 192,426,122,237.68
  5. Step 5: Solve for x
    x = 192,426,122,237.68/495,992.64
  6. Step 6: Final answer
    x = 387,961.65

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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.