Home / 1,394,286.60-2,091,429.90-862,408.20

Finding the Fourth Proportional to 1,394,286.60, 2,091,429.90 and 862,408.20

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Solution

The fourth proportional to 1,394,286.60, 2,091,429.90 and 862,408.20 is: 1,293,612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,286.60 : 2,091,429.90 = 862,408.20 : x
  2. Step 2: Convert to fraction form
    1,394,286.60/2,091,429.90 = 862,408.20/x
  3. Step 3: Cross multiply
    1,394,286.60x = 2,091,429.90 × 862,408.20
  4. Step 4: Simplify right side
    1,394,286.60x = 1,803,666,295,485.18
  5. Step 5: Solve for x
    x = 1,803,666,295,485.18/1,394,286.60
  6. Step 6: Final answer
    x = 1,293,612.30

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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.