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Finding the Fourth Proportional to 636,493.63, 878,367.50 and 350,015.71

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Solution

The fourth proportional to 636,493.63, 878,367.50 and 350,015.71 is: 483,025.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,493.63 : 878,367.50 = 350,015.71 : x
  2. Step 2: Convert to fraction form
    636,493.63/878,367.50 = 350,015.71/x
  3. Step 3: Cross multiply
    636,493.63x = 878,367.50 × 350,015.71
  4. Step 4: Simplify right side
    636,493.63x = 307,442,424,153.43
  5. Step 5: Solve for x
    x = 307,442,424,153.43/636,493.63
  6. Step 6: Final answer
    x = 483,025.14

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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.