Home / 1,990,735.80-2,986,103.70-1,234,908.60

Finding the Fourth Proportional to 1,990,735.80, 2,986,103.70 and 1,234,908.60

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Solution

The fourth proportional to 1,990,735.80, 2,986,103.70 and 1,234,908.60 is: 1,852,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,735.80 : 2,986,103.70 = 1,234,908.60 : x
  2. Step 2: Convert to fraction form
    1,990,735.80/2,986,103.70 = 1,234,908.60/x
  3. Step 3: Cross multiply
    1,990,735.80x = 2,986,103.70 × 1,234,908.60
  4. Step 4: Simplify right side
    1,990,735.80x = 3,687,565,139,621.82
  5. Step 5: Solve for x
    x = 3,687,565,139,621.82/1,990,735.80
  6. Step 6: Final answer
    x = 1,852,362.90

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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.