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Finding the Fourth Proportional to 636,481.17, 878,366.57 and 350,023.05

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Solution

The fourth proportional to 636,481.17, 878,366.57 and 350,023.05 is: 483,044.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,481.17 : 878,366.57 = 350,023.05 : x
  2. Step 2: Convert to fraction form
    636,481.17/878,366.57 = 350,023.05/x
  3. Step 3: Cross multiply
    636,481.17x = 878,366.57 × 350,023.05
  4. Step 4: Simplify right side
    636,481.17x = 307,448,544,099.32
  5. Step 5: Solve for x
    x = 307,448,544,099.32/636,481.17
  6. Step 6: Final answer
    x = 483,044.21

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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.