Home / 1,086,491.70-1,629,089.55-666,069.30

Finding the Fourth Proportional to 1,086,491.70, 1,629,089.55 and 666,069.30

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Solution

The fourth proportional to 1,086,491.70, 1,629,089.55 and 666,069.30 is: 998,706.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,491.70 : 1,629,089.55 = 666,069.30 : x
  2. Step 2: Convert to fraction form
    1,086,491.70/1,629,089.55 = 666,069.30/x
  3. Step 3: Cross multiply
    1,086,491.70x = 1,629,089.55 × 666,069.30
  4. Step 4: Simplify right side
    1,086,491.70x = 1,085,086,536,205.82
  5. Step 5: Solve for x
    x = 1,085,086,536,205.82/1,086,491.70
  6. Step 6: Final answer
    x = 998,706.70

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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.