Home / 1,338,620.23-2,008,728.22-485,758.43

Finding the Fourth Proportional to 1,338,620.23, 2,008,728.22 and 485,758.43

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Solution

The fourth proportional to 1,338,620.23, 2,008,728.22 and 485,758.43 is: 728,927.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,620.23 : 2,008,728.22 = 485,758.43 : x
  2. Step 2: Convert to fraction form
    1,338,620.23/2,008,728.22 = 485,758.43/x
  3. Step 3: Cross multiply
    1,338,620.23x = 2,008,728.22 × 485,758.43
  4. Step 4: Simplify right side
    1,338,620.23x = 975,756,666,443.90
  5. Step 5: Solve for x
    x = 975,756,666,443.90/1,338,620.23
  6. Step 6: Final answer
    x = 728,927.18

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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.