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Finding the Fourth Proportional to 495,601.62, 683,908.23 and 280,737.36

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Solution

The fourth proportional to 495,601.62, 683,908.23 and 280,737.36 is: 387,405.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,601.62 : 683,908.23 = 280,737.36 : x
  2. Step 2: Convert to fraction form
    495,601.62/683,908.23 = 280,737.36/x
  3. Step 3: Cross multiply
    495,601.62x = 683,908.23 × 280,737.36
  4. Step 4: Simplify right side
    495,601.62x = 191,998,590,972.47
  5. Step 5: Solve for x
    x = 191,998,590,972.47/495,601.62
  6. Step 6: Final answer
    x = 387,405.09

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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.