Home / 1,989,634.05-2,984,943.15-641,939.04

Finding the Fourth Proportional to 1,989,634.05, 2,984,943.15 and 641,939.04

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Solution

The fourth proportional to 1,989,634.05, 2,984,943.15 and 641,939.04 is: 963,067.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,634.05 : 2,984,943.15 = 641,939.04 : x
  2. Step 2: Convert to fraction form
    1,989,634.05/2,984,943.15 = 641,939.04/x
  3. Step 3: Cross multiply
    1,989,634.05x = 2,984,943.15 × 641,939.04
  4. Step 4: Simplify right side
    1,989,634.05x = 1,916,151,540,165.58
  5. Step 5: Solve for x
    x = 1,916,151,540,165.58/1,989,634.05
  6. Step 6: Final answer
    x = 963,067.32

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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.