Home / 2,197,978.40-3,297,356.40-778,858.40

Finding the Fourth Proportional to 2,197,978.40, 3,297,356.40 and 778,858.40

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Solution

The fourth proportional to 2,197,978.40, 3,297,356.40 and 778,858.40 is: 1,168,425.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197,978.40 : 3,297,356.40 = 778,858.40 : x
  2. Step 2: Convert to fraction form
    2,197,978.40/3,297,356.40 = 778,858.40/x
  3. Step 3: Cross multiply
    2,197,978.40x = 3,297,356.40 × 778,858.40
  4. Step 4: Simplify right side
    2,197,978.40x = 2,568,173,729,933.76
  5. Step 5: Solve for x
    x = 2,568,173,729,933.76/2,197,978.40
  6. Step 6: Final answer
    x = 1,168,425.37

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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.