Home / 1,990,816.60-2,986,235.70-494,908.60

Finding the Fourth Proportional to 1,990,816.60, 2,986,235.70 and 494,908.60

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Solution

The fourth proportional to 1,990,816.60, 2,986,235.70 and 494,908.60 is: 742,365.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,816.60 : 2,986,235.70 = 494,908.60 : x
  2. Step 2: Convert to fraction form
    1,990,816.60/2,986,235.70 = 494,908.60/x
  3. Step 3: Cross multiply
    1,990,816.60x = 2,986,235.70 × 494,908.60
  4. Step 4: Simplify right side
    1,990,816.60x = 1,477,913,729,557.02
  5. Step 5: Solve for x
    x = 1,477,913,729,557.02/1,990,816.60
  6. Step 6: Final answer
    x = 742,365.58

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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.