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Finding the Fourth Proportional to 612,505.53, 919,072.58 and 252,943.29

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Solution

The fourth proportional to 612,505.53, 919,072.58 and 252,943.29 is: 379,544.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,505.53 : 919,072.58 = 252,943.29 : x
  2. Step 2: Convert to fraction form
    612,505.53/919,072.58 = 252,943.29/x
  3. Step 3: Cross multiply
    612,505.53x = 919,072.58 × 252,943.29
  4. Step 4: Simplify right side
    612,505.53x = 232,473,240,869.27
  5. Step 5: Solve for x
    x = 232,473,240,869.27/612,505.53
  6. Step 6: Final answer
    x = 379,544.72

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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.