Home / 1,221,588.82-1,685,994.91-677,899.25

Finding the Fourth Proportional to 1,221,588.82, 1,685,994.91 and 677,899.25

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Solution

The fourth proportional to 1,221,588.82, 1,685,994.91 and 677,899.25 is: 935,613.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,588.82 : 1,685,994.91 = 677,899.25 : x
  2. Step 2: Convert to fraction form
    1,221,588.82/1,685,994.91 = 677,899.25/x
  3. Step 3: Cross multiply
    1,221,588.82x = 1,685,994.91 × 677,899.25
  4. Step 4: Simplify right side
    1,221,588.82x = 1,142,934,676,562.84
  5. Step 5: Solve for x
    x = 1,142,934,676,562.84/1,221,588.82
  6. Step 6: Final answer
    x = 935,613.24

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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.