Home / 1,212,147.72-1,818,015.84-359,201.52

Finding the Fourth Proportional to 1,212,147.72, 1,818,015.84 and 359,201.52

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Solution

The fourth proportional to 1,212,147.72, 1,818,015.84 and 359,201.52 is: 538,741.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,147.72 : 1,818,015.84 = 359,201.52 : x
  2. Step 2: Convert to fraction form
    1,212,147.72/1,818,015.84 = 359,201.52/x
  3. Step 3: Cross multiply
    1,212,147.72x = 1,818,015.84 × 359,201.52
  4. Step 4: Simplify right side
    1,212,147.72x = 653,034,053,112.08
  5. Step 5: Solve for x
    x = 653,034,053,112.08/1,212,147.72
  6. Step 6: Final answer
    x = 538,741.31

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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.