Home / 1,288,647.15-1,932,970.73-447,198.90

Finding the Fourth Proportional to 1,288,647.15, 1,932,970.73 and 447,198.90

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Solution

The fourth proportional to 1,288,647.15, 1,932,970.73 and 447,198.90 is: 670,798.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,647.15 : 1,932,970.73 = 447,198.90 : x
  2. Step 2: Convert to fraction form
    1,288,647.15/1,932,970.73 = 447,198.90/x
  3. Step 3: Cross multiply
    1,288,647.15x = 1,932,970.73 × 447,198.90
  4. Step 4: Simplify right side
    1,288,647.15x = 864,422,381,952.20
  5. Step 5: Solve for x
    x = 864,422,381,952.20/1,288,647.15
  6. Step 6: Final answer
    x = 670,798.35

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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.