Home / 3,988,263.45-5,981,140.37-1,291,963.09

Finding the Fourth Proportional to 3,988,263.45, 5,981,140.37 and 1,291,963.09

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Solution

The fourth proportional to 3,988,263.45, 5,981,140.37 and 1,291,963.09 is: 1,937,538.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988,263.45 : 5,981,140.37 = 1,291,963.09 : x
  2. Step 2: Convert to fraction form
    3,988,263.45/5,981,140.37 = 1,291,963.09/x
  3. Step 3: Cross multiply
    3,988,263.45x = 5,981,140.37 × 1,291,963.09
  4. Step 4: Simplify right side
    3,988,263.45x = 7,727,412,594,148.94
  5. Step 5: Solve for x
    x = 7,727,412,594,148.94/3,988,263.45
  6. Step 6: Final answer
    x = 1,937,538.15

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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.