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Finding the Fourth Proportional to 479,256.45, 661,376.14 and 264,396.45

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Solution

The fourth proportional to 479,256.45, 661,376.14 and 264,396.45 is: 364,868.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,256.45 : 661,376.14 = 264,396.45 : x
  2. Step 2: Convert to fraction form
    479,256.45/661,376.14 = 264,396.45/x
  3. Step 3: Cross multiply
    479,256.45x = 661,376.14 × 264,396.45
  4. Step 4: Simplify right side
    479,256.45x = 174,865,505,349.87
  5. Step 5: Solve for x
    x = 174,865,505,349.87/479,256.45
  6. Step 6: Final answer
    x = 364,868.34

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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.