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Finding the Fourth Proportional to 452,455.74, 678,969.61 and 252,907.04

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Solution

The fourth proportional to 452,455.74, 678,969.61 and 252,907.04 is: 379,520.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,455.74 : 678,969.61 = 252,907.04 : x
  2. Step 2: Convert to fraction form
    452,455.74/678,969.61 = 252,907.04/x
  3. Step 3: Cross multiply
    452,455.74x = 678,969.61 × 252,907.04
  4. Step 4: Simplify right side
    452,455.74x = 171,716,195,380.21
  5. Step 5: Solve for x
    x = 171,716,195,380.21/452,455.74
  6. Step 6: Final answer
    x = 379,520.43

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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.