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Finding the Fourth Proportional to 452,709, 624,738.42 and 251,505

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Solution

The fourth proportional to 452,709, 624,738.42 and 251,505 is: 347,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,709 : 624,738.42 = 251,505 : x
  2. Step 2: Convert to fraction form
    452,709/624,738.42 = 251,505/x
  3. Step 3: Cross multiply
    452,709x = 624,738.42 × 251,505
  4. Step 4: Simplify right side
    452,709x = 157,124,836,322.10
  5. Step 5: Solve for x
    x = 157,124,836,322.10/452,709
  6. Step 6: Final answer
    x = 347,076.90

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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.