Home / 1,221,590.82-1,685,997.67-677,901.25

Finding the Fourth Proportional to 1,221,590.82, 1,685,997.67 and 677,901.25

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Solution

The fourth proportional to 1,221,590.82, 1,685,997.67 and 677,901.25 is: 935,616.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,590.82 : 1,685,997.67 = 677,901.25 : x
  2. Step 2: Convert to fraction form
    1,221,590.82/1,685,997.67 = 677,901.25/x
  3. Step 3: Cross multiply
    1,221,590.82x = 1,685,997.67 × 677,901.25
  4. Step 4: Simplify right side
    1,221,590.82x = 1,142,939,927,990.09
  5. Step 5: Solve for x
    x = 1,142,939,927,990.09/1,221,590.82
  6. Step 6: Final answer
    x = 935,616.01

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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.