Home / 1,990,813.60-2,986,231.20-494,905.60

Finding the Fourth Proportional to 1,990,813.60, 2,986,231.20 and 494,905.60

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Solution

The fourth proportional to 1,990,813.60, 2,986,231.20 and 494,905.60 is: 742,361.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,813.60 : 2,986,231.20 = 494,905.60 : x
  2. Step 2: Convert to fraction form
    1,990,813.60/2,986,231.20 = 494,905.60/x
  3. Step 3: Cross multiply
    1,990,813.60x = 2,986,231.20 × 494,905.60
  4. Step 4: Simplify right side
    1,990,813.60x = 1,477,902,543,774.72
  5. Step 5: Solve for x
    x = 1,477,902,543,774.72/1,990,813.60
  6. Step 6: Final answer
    x = 742,361.08

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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.