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Finding the Fourth Proportional to 495,979, 684,449.38 and 269,622.88

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Solution

The fourth proportional to 495,979, 684,449.38 and 269,622.88 is: 372,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,979 : 684,449.38 = 269,622.88 : x
  2. Step 2: Convert to fraction form
    495,979/684,449.38 = 269,622.88/x
  3. Step 3: Cross multiply
    495,979x = 684,449.38 × 269,622.88
  4. Step 4: Simplify right side
    495,979x = 184,543,213,049.81
  5. Step 5: Solve for x
    x = 184,543,213,049.81/495,979
  6. Step 6: Final answer
    x = 372,078.68

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1.5x scale

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.