Home / 1,320,738.05-1,980,297.45-562,147.54

Finding the Fourth Proportional to 1,320,738.05, 1,980,297.45 and 562,147.54

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Solution

The fourth proportional to 1,320,738.05, 1,980,297.45 and 562,147.54 is: 842,876.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,738.05 : 1,980,297.45 = 562,147.54 : x
  2. Step 2: Convert to fraction form
    1,320,738.05/1,980,297.45 = 562,147.54/x
  3. Step 3: Cross multiply
    1,320,738.05x = 1,980,297.45 × 562,147.54
  4. Step 4: Simplify right side
    1,320,738.05x = 1,113,219,339,985.77
  5. Step 5: Solve for x
    x = 1,113,219,339,985.77/1,320,738.05
  6. Step 6: Final answer
    x = 842,876.71

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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.