Home / 1,816,791.41-2,507,148.95-989,899.43

Finding the Fourth Proportional to 1,816,791.41, 2,507,148.95 and 989,899.43

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Solution

The fourth proportional to 1,816,791.41, 2,507,148.95 and 989,899.43 is: 1,366,048.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816,791.41 : 2,507,148.95 = 989,899.43 : x
  2. Step 2: Convert to fraction form
    1,816,791.41/2,507,148.95 = 989,899.43/x
  3. Step 3: Cross multiply
    1,816,791.41x = 2,507,148.95 × 989,899.43
  4. Step 4: Simplify right side
    1,816,791.41x = 2,481,825,299,044.86
  5. Step 5: Solve for x
    x = 2,481,825,299,044.86/1,816,791.41
  6. Step 6: Final answer
    x = 1,366,048.57

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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.