Home / 1,990,362.40-2,985,932.40-792,080.80

Finding the Fourth Proportional to 1,990,362.40, 2,985,932.40 and 792,080.80

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Solution

The fourth proportional to 1,990,362.40, 2,985,932.40 and 792,080.80 is: 1,188,275.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,362.40 : 2,985,932.40 = 792,080.80 : x
  2. Step 2: Convert to fraction form
    1,990,362.40/2,985,932.40 = 792,080.80/x
  3. Step 3: Cross multiply
    1,990,362.40x = 2,985,932.40 × 792,080.80
  4. Step 4: Simplify right side
    1,990,362.40x = 2,365,099,724,137.92
  5. Step 5: Solve for x
    x = 2,365,099,724,137.92/1,990,362.40
  6. Step 6: Final answer
    x = 1,188,275.93

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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.