Home / 2,131,405.63-3,197,374.48-834,390.48

Finding the Fourth Proportional to 2,131,405.63, 3,197,374.48 and 834,390.48

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Solution

The fourth proportional to 2,131,405.63, 3,197,374.48 and 834,390.48 is: 1,251,689.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,405.63 : 3,197,374.48 = 834,390.48 : x
  2. Step 2: Convert to fraction form
    2,131,405.63/3,197,374.48 = 834,390.48/x
  3. Step 3: Cross multiply
    2,131,405.63x = 3,197,374.48 × 834,390.48
  4. Step 4: Simplify right side
    2,131,405.63x = 2,667,858,827,106.95
  5. Step 5: Solve for x
    x = 2,667,858,827,106.95/2,131,405.63
  6. Step 6: Final answer
    x = 1,251,689.87

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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.