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Finding the Fourth Proportional to 636,493.69, 954,204.31 and 276,393.61

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Solution

The fourth proportional to 636,493.69, 954,204.31 and 276,393.61 is: 414,357.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,493.69 : 954,204.31 = 276,393.61 : x
  2. Step 2: Convert to fraction form
    636,493.69/954,204.31 = 276,393.61/x
  3. Step 3: Cross multiply
    636,493.69x = 954,204.31 × 276,393.61
  4. Step 4: Simplify right side
    636,493.69x = 263,735,973,918.46
  5. Step 5: Solve for x
    x = 263,735,973,918.46/636,493.69
  6. Step 6: Final answer
    x = 414,357.56

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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.