Home / 1,904,620.67-2,856,923.30-689,913

Finding the Fourth Proportional to 1,904,620.67, 2,856,923.30 and 689,913

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Solution

The fourth proportional to 1,904,620.67, 2,856,923.30 and 689,913 is: 1,034,866.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904,620.67 : 2,856,923.30 = 689,913 : x
  2. Step 2: Convert to fraction form
    1,904,620.67/2,856,923.30 = 689,913/x
  3. Step 3: Cross multiply
    1,904,620.67x = 2,856,923.30 × 689,913
  4. Step 4: Simplify right side
    1,904,620.67x = 1,971,028,526,397.68
  5. Step 5: Solve for x
    x = 1,971,028,526,397.68/1,904,620.67
  6. Step 6: Final answer
    x = 1,034,866.71

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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.