Home / 1,987,967.70-2,981,951.55-492,059.70

Finding the Fourth Proportional to 1,987,967.70, 2,981,951.55 and 492,059.70

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Solution

The fourth proportional to 1,987,967.70, 2,981,951.55 and 492,059.70 is: 738,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,967.70 : 2,981,951.55 = 492,059.70 : x
  2. Step 2: Convert to fraction form
    1,987,967.70/2,981,951.55 = 492,059.70/x
  3. Step 3: Cross multiply
    1,987,967.70x = 2,981,951.55 × 492,059.70
  4. Step 4: Simplify right side
    1,987,967.70x = 1,467,298,185,107.54
  5. Step 5: Solve for x
    x = 1,467,298,185,107.54/1,987,967.70
  6. Step 6: Final answer
    x = 738,089.55

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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.