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Finding the Fourth Proportional to 642,762.77, 963,464.37 and 237,694.69

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Solution

The fourth proportional to 642,762.77, 963,464.37 and 237,694.69 is: 356,290.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,762.77 : 963,464.37 = 237,694.69 : x
  2. Step 2: Convert to fraction form
    642,762.77/963,464.37 = 237,694.69/x
  3. Step 3: Cross multiply
    642,762.77x = 963,464.37 × 237,694.69
  4. Step 4: Simplify right side
    642,762.77x = 229,010,361,750.30
  5. Step 5: Solve for x
    x = 229,010,361,750.30/642,762.77
  6. Step 6: Final answer
    x = 356,290.65

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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.