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Finding the Fourth Proportional to 642,732.54, 963,796.64 and 237,644.87

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Solution

The fourth proportional to 642,732.54, 963,796.64 and 237,644.87 is: 356,355.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,732.54 : 963,796.64 = 237,644.87 : x
  2. Step 2: Convert to fraction form
    642,732.54/963,796.64 = 237,644.87/x
  3. Step 3: Cross multiply
    642,732.54x = 963,796.64 × 237,644.87
  4. Step 4: Simplify right side
    642,732.54x = 229,041,321,880.41
  5. Step 5: Solve for x
    x = 229,041,321,880.41/642,732.54
  6. Step 6: Final answer
    x = 356,355.57

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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.