Home / 2,628,538.80-3,942,808.20-1,788,730.80

Finding the Fourth Proportional to 2,628,538.80, 3,942,808.20 and 1,788,730.80

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Solution

The fourth proportional to 2,628,538.80, 3,942,808.20 and 1,788,730.80 is: 2,683,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,538.80 : 3,942,808.20 = 1,788,730.80 : x
  2. Step 2: Convert to fraction form
    2,628,538.80/3,942,808.20 = 1,788,730.80/x
  3. Step 3: Cross multiply
    2,628,538.80x = 3,942,808.20 × 1,788,730.80
  4. Step 4: Simplify right side
    2,628,538.80x = 7,052,622,465,832.56
  5. Step 5: Solve for x
    x = 7,052,622,465,832.56/2,628,538.80
  6. Step 6: Final answer
    x = 2,683,096.20

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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.