Home / 1,188,361.34-1,640,148.30-705,192.89

Finding the Fourth Proportional to 1,188,361.34, 1,640,148.30 and 705,192.89

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Solution

The fourth proportional to 1,188,361.34, 1,640,148.30 and 705,192.89 is: 973,290.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,361.34 : 1,640,148.30 = 705,192.89 : x
  2. Step 2: Convert to fraction form
    1,188,361.34/1,640,148.30 = 705,192.89/x
  3. Step 3: Cross multiply
    1,188,361.34x = 1,640,148.30 × 705,192.89
  4. Step 4: Simplify right side
    1,188,361.34x = 1,156,620,923,805.96
  5. Step 5: Solve for x
    x = 1,156,620,923,805.96/1,188,361.34
  6. Step 6: Final answer
    x = 973,290.61

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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.