Home / 1,185,850.64-1,636,471.86-641,986.22

Finding the Fourth Proportional to 1,185,850.64, 1,636,471.86 and 641,986.22

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Solution

The fourth proportional to 1,185,850.64, 1,636,471.86 and 641,986.22 is: 885,939.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,850.64 : 1,636,471.86 = 641,986.22 : x
  2. Step 2: Convert to fraction form
    1,185,850.64/1,636,471.86 = 641,986.22/x
  3. Step 3: Cross multiply
    1,185,850.64x = 1,636,471.86 × 641,986.22
  4. Step 4: Simplify right side
    1,185,850.64x = 1,050,592,383,537.77
  5. Step 5: Solve for x
    x = 1,050,592,383,537.77/1,185,850.64
  6. Step 6: Final answer
    x = 885,939.89

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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.