Home / 1,511,703.36-2,086,150.38-832,639.86

Finding the Fourth Proportional to 1,511,703.36, 2,086,150.38 and 832,639.86

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Solution

The fourth proportional to 1,511,703.36, 2,086,150.38 and 832,639.86 is: 1,149,042.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,703.36 : 2,086,150.38 = 832,639.86 : x
  2. Step 2: Convert to fraction form
    1,511,703.36/2,086,150.38 = 832,639.86/x
  3. Step 3: Cross multiply
    1,511,703.36x = 2,086,150.38 × 832,639.86
  4. Step 4: Simplify right side
    1,511,703.36x = 1,737,011,960,342.15
  5. Step 5: Solve for x
    x = 1,737,011,960,342.15/1,511,703.36
  6. Step 6: Final answer
    x = 1,149,042.87

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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.