Home / 2,128,364.70-3,193,468.65-1,005,855.90

Finding the Fourth Proportional to 2,128,364.70, 3,193,468.65 and 1,005,855.90

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Solution

The fourth proportional to 2,128,364.70, 3,193,468.65 and 1,005,855.90 is: 1,509,219.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,364.70 : 3,193,468.65 = 1,005,855.90 : x
  2. Step 2: Convert to fraction form
    2,128,364.70/3,193,468.65 = 1,005,855.90/x
  3. Step 3: Cross multiply
    2,128,364.70x = 3,193,468.65 × 1,005,855.90
  4. Step 4: Simplify right side
    2,128,364.70x = 3,212,169,283,067.54
  5. Step 5: Solve for x
    x = 3,212,169,283,067.54/2,128,364.70
  6. Step 6: Final answer
    x = 1,509,219.39

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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.