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Finding the Fourth Proportional to 642,758.69, 964,573.61 and 263,747.94

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Solution

The fourth proportional to 642,758.69, 964,573.61 and 263,747.94 is: 395,800.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,758.69 : 964,573.61 = 263,747.94 : x
  2. Step 2: Convert to fraction form
    642,758.69/964,573.61 = 263,747.94/x
  3. Step 3: Cross multiply
    642,758.69x = 964,573.61 × 263,747.94
  4. Step 4: Simplify right side
    642,758.69x = 254,404,302,615.86
  5. Step 5: Solve for x
    x = 254,404,302,615.86/642,758.69
  6. Step 6: Final answer
    x = 395,800.64

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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.