Home / 1,380,136.88-1,904,455.28-1,017,755.84

Finding the Fourth Proportional to 1,380,136.88, 1,904,455.28 and 1,017,755.84

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Solution

The fourth proportional to 1,380,136.88, 1,904,455.28 and 1,017,755.84 is: 1,404,404.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,136.88 : 1,904,455.28 = 1,017,755.84 : x
  2. Step 2: Convert to fraction form
    1,380,136.88/1,904,455.28 = 1,017,755.84/x
  3. Step 3: Cross multiply
    1,380,136.88x = 1,904,455.28 × 1,017,755.84
  4. Step 4: Simplify right side
    1,380,136.88x = 1,938,270,483,238.84
  5. Step 5: Solve for x
    x = 1,938,270,483,238.84/1,380,136.88
  6. Step 6: Final answer
    x = 1,404,404.53

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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.