Home / 1,994,138.70-2,987,708.85-1,637,220.30

Finding the Fourth Proportional to 1,994,138.70, 2,987,708.85 and 1,637,220.30

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Solution

The fourth proportional to 1,994,138.70, 2,987,708.85 and 1,637,220.30 is: 2,452,957.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994,138.70 : 2,987,708.85 = 1,637,220.30 : x
  2. Step 2: Convert to fraction form
    1,994,138.70/2,987,708.85 = 1,637,220.30/x
  3. Step 3: Cross multiply
    1,994,138.70x = 2,987,708.85 × 1,637,220.30
  4. Step 4: Simplify right side
    1,994,138.70x = 4,891,537,579,709.66
  5. Step 5: Solve for x
    x = 4,891,537,579,709.66/1,994,138.70
  6. Step 6: Final answer
    x = 2,452,957.55

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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.