Home / 685,536.90-1,028,305.35-672,414.90

Finding the Fourth Proportional to 685,536.90, 1,028,305.35 and 672,414.90

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Solution

The fourth proportional to 685,536.90, 1,028,305.35 and 672,414.90 is: 1,008,622.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,536.90 : 1,028,305.35 = 672,414.90 : x
  2. Step 2: Convert to fraction form
    685,536.90/1,028,305.35 = 672,414.90/x
  3. Step 3: Cross multiply
    685,536.90x = 1,028,305.35 × 672,414.90
  4. Step 4: Simplify right side
    685,536.90x = 691,447,839,089.72
  5. Step 5: Solve for x
    x = 691,447,839,089.72/685,536.90
  6. Step 6: Final answer
    x = 1,008,622.35

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.