Home / 767,921.58-1,059,942.56-445,735.47

Finding the Fourth Proportional to 767,921.58, 1,059,942.56 and 445,735.47

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Solution

The fourth proportional to 767,921.58, 1,059,942.56 and 445,735.47 is: 615,237.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,921.58 : 1,059,942.56 = 445,735.47 : x
  2. Step 2: Convert to fraction form
    767,921.58/1,059,942.56 = 445,735.47/x
  3. Step 3: Cross multiply
    767,921.58x = 1,059,942.56 × 445,735.47
  4. Step 4: Simplify right side
    767,921.58x = 472,453,999,407.97
  5. Step 5: Solve for x
    x = 472,453,999,407.97/767,921.58
  6. Step 6: Final answer
    x = 615,237.30

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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.