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Finding the Fourth Proportional to 479,238.52, 661,347.28 and 264,391.96

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Solution

The fourth proportional to 479,238.52, 661,347.28 and 264,391.96 is: 364,859.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,238.52 : 661,347.28 = 264,391.96 : x
  2. Step 2: Convert to fraction form
    479,238.52/661,347.28 = 264,391.96/x
  3. Step 3: Cross multiply
    479,238.52x = 661,347.28 × 264,391.96
  4. Step 4: Simplify right side
    479,238.52x = 174,854,903,599.87
  5. Step 5: Solve for x
    x = 174,854,903,599.87/479,238.52
  6. Step 6: Final answer
    x = 364,859.87

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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.