Home / 1,815,643.73-2,505,721.55-1,299,446.09

Finding the Fourth Proportional to 1,815,643.73, 2,505,721.55 and 1,299,446.09

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Solution

The fourth proportional to 1,815,643.73, 2,505,721.55 and 1,299,446.09 is: 1,793,330.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,643.73 : 2,505,721.55 = 1,299,446.09 : x
  2. Step 2: Convert to fraction form
    1,815,643.73/2,505,721.55 = 1,299,446.09/x
  3. Step 3: Cross multiply
    1,815,643.73x = 2,505,721.55 × 1,299,446.09
  4. Step 4: Simplify right side
    1,815,643.73x = 3,256,050,064,279.01
  5. Step 5: Solve for x
    x = 3,256,050,064,279.01/1,815,643.73
  6. Step 6: Final answer
    x = 1,793,330.93

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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.