Home / 512,784.31-769,177.04-133,704.72

Finding the Fourth Proportional to 512,784.31, 769,177.04 and 133,704.72

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Solution

The fourth proportional to 512,784.31, 769,177.04 and 133,704.72 is: 200,557.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,784.31 : 769,177.04 = 133,704.72 : x
  2. Step 2: Convert to fraction form
    512,784.31/769,177.04 = 133,704.72/x
  3. Step 3: Cross multiply
    512,784.31x = 769,177.04 × 133,704.72
  4. Step 4: Simplify right side
    512,784.31x = 102,842,602,787.10
  5. Step 5: Solve for x
    x = 102,842,602,787.10/512,784.31
  6. Step 6: Final answer
    x = 200,557.23

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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.