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Finding the Fourth Proportional to 1,380,083.17, 1,904,532.89 and 759,961.03

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Solution

The fourth proportional to 1,380,083.17, 1,904,532.89 and 759,961.03 is: 1,048,756.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,083.17 : 1,904,532.89 = 759,961.03 : x
  2. Step 2: Convert to fraction form
    1,380,083.17/1,904,532.89 = 759,961.03/x
  3. Step 3: Cross multiply
    1,380,083.17x = 1,904,532.89 × 759,961.03
  4. Step 4: Simplify right side
    1,380,083.17x = 1,447,370,773,630.07
  5. Step 5: Solve for x
    x = 1,447,370,773,630.07/1,380,083.17
  6. Step 6: Final answer
    x = 1,048,756.19

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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.