Home / 1,989,066.80-2,983,600.20-1,790,001.20

Finding the Fourth Proportional to 1,989,066.80, 2,983,600.20 and 1,790,001.20

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Solution

The fourth proportional to 1,989,066.80, 2,983,600.20 and 1,790,001.20 is: 2,685,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,066.80 : 2,983,600.20 = 1,790,001.20 : x
  2. Step 2: Convert to fraction form
    1,989,066.80/2,983,600.20 = 1,790,001.20/x
  3. Step 3: Cross multiply
    1,989,066.80x = 2,983,600.20 × 1,790,001.20
  4. Step 4: Simplify right side
    1,989,066.80x = 5,340,647,938,320.24
  5. Step 5: Solve for x
    x = 5,340,647,938,320.24/1,989,066.80
  6. Step 6: Final answer
    x = 2,685,001.80

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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.