Home / 1,990,356.60-2,985,534.90-494,448.60

Finding the Fourth Proportional to 1,990,356.60, 2,985,534.90 and 494,448.60

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Solution

The fourth proportional to 1,990,356.60, 2,985,534.90 and 494,448.60 is: 741,672.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,356.60 : 2,985,534.90 = 494,448.60 : x
  2. Step 2: Convert to fraction form
    1,990,356.60/2,985,534.90 = 494,448.60/x
  3. Step 3: Cross multiply
    1,990,356.60x = 2,985,534.90 × 494,448.60
  4. Step 4: Simplify right side
    1,990,356.60x = 1,476,193,551,556.14
  5. Step 5: Solve for x
    x = 1,476,193,551,556.14/1,990,356.60
  6. Step 6: Final answer
    x = 741,672.90

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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.