Home / 1,860,147.78-2,789,135.69-721,579.56

Finding the Fourth Proportional to 1,860,147.78, 2,789,135.69 and 721,579.56

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Solution

The fourth proportional to 1,860,147.78, 2,789,135.69 and 721,579.56 is: 1,081,948.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860,147.78 : 2,789,135.69 = 721,579.56 : x
  2. Step 2: Convert to fraction form
    1,860,147.78/2,789,135.69 = 721,579.56/x
  3. Step 3: Cross multiply
    1,860,147.78x = 2,789,135.69 × 721,579.56
  4. Step 4: Simplify right side
    1,860,147.78x = 2,012,583,300,362.60
  5. Step 5: Solve for x
    x = 2,012,583,300,362.60/1,860,147.78
  6. Step 6: Final answer
    x = 1,081,948.07

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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.