Home / 1,990,334.40-2,985,890.40-792,052.80

Finding the Fourth Proportional to 1,990,334.40, 2,985,890.40 and 792,052.80

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Solution

The fourth proportional to 1,990,334.40, 2,985,890.40 and 792,052.80 is: 1,188,233.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,334.40 : 2,985,890.40 = 792,052.80 : x
  2. Step 2: Convert to fraction form
    1,990,334.40/2,985,890.40 = 792,052.80/x
  3. Step 3: Cross multiply
    1,990,334.40x = 2,985,890.40 × 792,052.80
  4. Step 4: Simplify right side
    1,990,334.40x = 2,364,982,851,813.12
  5. Step 5: Solve for x
    x = 2,364,982,851,813.12/1,990,334.40
  6. Step 6: Final answer
    x = 1,188,233.92

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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.