Home / 2,618,895.52-3,928,509.30-821,849.84

Finding the Fourth Proportional to 2,618,895.52, 3,928,509.30 and 821,849.84

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Solution

The fourth proportional to 2,618,895.52, 3,928,509.30 and 821,849.84 is: 1,232,826.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618,895.52 : 3,928,509.30 = 821,849.84 : x
  2. Step 2: Convert to fraction form
    2,618,895.52/3,928,509.30 = 821,849.84/x
  3. Step 3: Cross multiply
    2,618,895.52x = 3,928,509.30 × 821,849.84
  4. Step 4: Simplify right side
    2,618,895.52x = 3,228,644,739,643.51
  5. Step 5: Solve for x
    x = 3,228,644,739,643.51/2,618,895.52
  6. Step 6: Final answer
    x = 1,232,826.86

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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.