Home / 825,087.78-1,237,984.56-345,427.64

Finding the Fourth Proportional to 825,087.78, 1,237,984.56 and 345,427.64

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Solution

The fourth proportional to 825,087.78, 1,237,984.56 and 345,427.64 is: 518,289.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,087.78 : 1,237,984.56 = 345,427.64 : x
  2. Step 2: Convert to fraction form
    825,087.78/1,237,984.56 = 345,427.64/x
  3. Step 3: Cross multiply
    825,087.78x = 1,237,984.56 × 345,427.64
  4. Step 4: Simplify right side
    825,087.78x = 427,634,084,917.24
  5. Step 5: Solve for x
    x = 427,634,084,917.24/825,087.78
  6. Step 6: Final answer
    x = 518,289.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.