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Finding the Fourth Proportional to 1,274,978.03, 1,759,473.84 and 694,208.03

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Solution

The fourth proportional to 1,274,978.03, 1,759,473.84 and 694,208.03 is: 958,009.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,978.03 : 1,759,473.84 = 694,208.03 : x
  2. Step 2: Convert to fraction form
    1,274,978.03/1,759,473.84 = 694,208.03/x
  3. Step 3: Cross multiply
    1,274,978.03x = 1,759,473.84 × 694,208.03
  4. Step 4: Simplify right side
    1,274,978.03x = 1,221,440,859,505.57
  5. Step 5: Solve for x
    x = 1,221,440,859,505.57/1,274,978.03
  6. Step 6: Final answer
    x = 958,009.34

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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.