Home / 468,975.43-647,198.04-287,787.43

Finding the Fourth Proportional to 468,975.43, 647,198.04 and 287,787.43

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Solution

The fourth proportional to 468,975.43, 647,198.04 and 287,787.43 is: 397,153.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,975.43 : 647,198.04 = 287,787.43 : x
  2. Step 2: Convert to fraction form
    468,975.43/647,198.04 = 287,787.43/x
  3. Step 3: Cross multiply
    468,975.43x = 647,198.04 × 287,787.43
  4. Step 4: Simplify right side
    468,975.43x = 186,255,460,632.64
  5. Step 5: Solve for x
    x = 186,255,460,632.64/468,975.43
  6. Step 6: Final answer
    x = 397,153.98

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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.