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Finding the Fourth Proportional to 423,958.85, 636,002.82 and 263,905.28

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Solution

The fourth proportional to 423,958.85, 636,002.82 and 263,905.28 is: 395,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,958.85 : 636,002.82 = 263,905.28 : x
  2. Step 2: Convert to fraction form
    423,958.85/636,002.82 = 263,905.28/x
  3. Step 3: Cross multiply
    423,958.85x = 636,002.82 × 263,905.28
  4. Step 4: Simplify right side
    423,958.85x = 167,844,502,292.89
  5. Step 5: Solve for x
    x = 167,844,502,292.89/423,958.85
  6. Step 6: Final answer
    x = 395,898.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.