Home / 1,297,323.63-1,789,321.44-1,116,338.85

Finding the Fourth Proportional to 1,297,323.63, 1,789,321.44 and 1,116,338.85

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Solution

The fourth proportional to 1,297,323.63, 1,789,321.44 and 1,116,338.85 is: 1,539,699.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,323.63 : 1,789,321.44 = 1,116,338.85 : x
  2. Step 2: Convert to fraction form
    1,297,323.63/1,789,321.44 = 1,116,338.85/x
  3. Step 3: Cross multiply
    1,297,323.63x = 1,789,321.44 × 1,116,338.85
  4. Step 4: Simplify right side
    1,297,323.63x = 1,997,489,038,609.94
  5. Step 5: Solve for x
    x = 1,997,489,038,609.94/1,297,323.63
  6. Step 6: Final answer
    x = 1,539,699.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.