Home / 1,338,623.35-2,008,732.85-485,761.54

Finding the Fourth Proportional to 1,338,623.35, 2,008,732.85 and 485,761.54

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Solution

The fourth proportional to 1,338,623.35, 2,008,732.85 and 485,761.54 is: 728,931.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,623.35 : 2,008,732.85 = 485,761.54 : x
  2. Step 2: Convert to fraction form
    1,338,623.35/2,008,732.85 = 485,761.54/x
  3. Step 3: Cross multiply
    1,338,623.35x = 2,008,732.85 × 485,761.54
  4. Step 4: Simplify right side
    1,338,623.35x = 975,765,162,664.59
  5. Step 5: Solve for x
    x = 975,765,162,664.59/1,338,623.35
  6. Step 6: Final answer
    x = 728,931.83

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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.