Home / 2,618,890.98-3,928,502.56-821,845.32

Finding the Fourth Proportional to 2,618,890.98, 3,928,502.56 and 821,845.32

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Solution

The fourth proportional to 2,618,890.98, 3,928,502.56 and 821,845.32 is: 1,232,820.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618,890.98 : 3,928,502.56 = 821,845.32 : x
  2. Step 2: Convert to fraction form
    2,618,890.98/3,928,502.56 = 821,845.32/x
  3. Step 3: Cross multiply
    2,618,890.98x = 3,928,502.56 × 821,845.32
  4. Step 4: Simplify right side
    2,618,890.98x = 3,228,621,443,544.02
  5. Step 5: Solve for x
    x = 3,228,621,443,544.02/2,618,890.98
  6. Step 6: Final answer
    x = 1,232,820.10

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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.