Home / 1,122,736.45-1,548,887.44-687,173.19

Finding the Fourth Proportional to 1,122,736.45, 1,548,887.44 and 687,173.19

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Solution

The fourth proportional to 1,122,736.45, 1,548,887.44 and 687,173.19 is: 947,999.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,736.45 : 1,548,887.44 = 687,173.19 : x
  2. Step 2: Convert to fraction form
    1,122,736.45/1,548,887.44 = 687,173.19/x
  3. Step 3: Cross multiply
    1,122,736.45x = 1,548,887.44 × 687,173.19
  4. Step 4: Simplify right side
    1,122,736.45x = 1,064,353,923,095.73
  5. Step 5: Solve for x
    x = 1,064,353,923,095.73/1,122,736.45
  6. Step 6: Final answer
    x = 947,999.79

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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.