Home / 1,214,611-1,676,163.30-678,067

Finding the Fourth Proportional to 1,214,611, 1,676,163.30 and 678,067

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Solution

The fourth proportional to 1,214,611, 1,676,163.30 and 678,067 is: 935,732.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,611 : 1,676,163.30 = 678,067 : x
  2. Step 2: Convert to fraction form
    1,214,611/1,676,163.30 = 678,067/x
  3. Step 3: Cross multiply
    1,214,611x = 1,676,163.30 × 678,067
  4. Step 4: Simplify right side
    1,214,611x = 1,136,551,020,341.10
  5. Step 5: Solve for x
    x = 1,136,551,020,341.10/1,214,611
  6. Step 6: Final answer
    x = 935,732.53

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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.