Home / 1,427,495.78-1,969,945.44-782,928.56

Finding the Fourth Proportional to 1,427,495.78, 1,969,945.44 and 782,928.56

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Solution

The fourth proportional to 1,427,495.78, 1,969,945.44 and 782,928.56 is: 1,080,442.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,495.78 : 1,969,945.44 = 782,928.56 : x
  2. Step 2: Convert to fraction form
    1,427,495.78/1,969,945.44 = 782,928.56/x
  3. Step 3: Cross multiply
    1,427,495.78x = 1,969,945.44 × 782,928.56
  4. Step 4: Simplify right side
    1,427,495.78x = 1,542,326,546,617.77
  5. Step 5: Solve for x
    x = 1,542,326,546,617.77/1,427,495.78
  6. Step 6: Final answer
    x = 1,080,442.11

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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.