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Finding the Fourth Proportional to 643,562.46, 965,655.27 and 264,763.11

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Solution

The fourth proportional to 643,562.46, 965,655.27 and 264,763.11 is: 397,272.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,562.46 : 965,655.27 = 264,763.11 : x
  2. Step 2: Convert to fraction form
    643,562.46/965,655.27 = 264,763.11/x
  3. Step 3: Cross multiply
    643,562.46x = 965,655.27 × 264,763.11
  4. Step 4: Simplify right side
    643,562.46x = 255,669,892,473.09
  5. Step 5: Solve for x
    x = 255,669,892,473.09/643,562.46
  6. Step 6: Final answer
    x = 397,272.85

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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.