Home / 1,188,361.21-1,640,148.13-705,192.77

Finding the Fourth Proportional to 1,188,361.21, 1,640,148.13 and 705,192.77

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Solution

The fourth proportional to 1,188,361.21, 1,640,148.13 and 705,192.77 is: 973,290.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,361.21 : 1,640,148.13 = 705,192.77 : x
  2. Step 2: Convert to fraction form
    1,188,361.21/1,640,148.13 = 705,192.77/x
  3. Step 3: Cross multiply
    1,188,361.21x = 1,640,148.13 × 705,192.77
  4. Step 4: Simplify right side
    1,188,361.21x = 1,156,620,597,141.67
  5. Step 5: Solve for x
    x = 1,156,620,597,141.67/1,188,361.21
  6. Step 6: Final answer
    x = 973,290.43

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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.