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Finding the Fourth Proportional to 495,995.64, 684,527.52 and 281,112.66

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Solution

The fourth proportional to 495,995.64, 684,527.52 and 281,112.66 is: 387,965.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,995.64 : 684,527.52 = 281,112.66 : x
  2. Step 2: Convert to fraction form
    495,995.64/684,527.52 = 281,112.66/x
  3. Step 3: Cross multiply
    495,995.64x = 684,527.52 × 281,112.66
  4. Step 4: Simplify right side
    495,995.64x = 192,429,351,990.40
  5. Step 5: Solve for x
    x = 192,429,351,990.40/495,995.64
  6. Step 6: Final answer
    x = 387,965.81

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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.