Home / 3,118,031.75-4,302,896.78-1,687,247.75

Finding the Fourth Proportional to 3,118,031.75, 4,302,896.78 and 1,687,247.75

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Solution

The fourth proportional to 3,118,031.75, 4,302,896.78 and 1,687,247.75 is: 2,328,408.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,031.75 : 4,302,896.78 = 1,687,247.75 : x
  2. Step 2: Convert to fraction form
    3,118,031.75/4,302,896.78 = 1,687,247.75/x
  3. Step 3: Cross multiply
    3,118,031.75x = 4,302,896.78 × 1,687,247.75
  4. Step 4: Simplify right side
    3,118,031.75x = 7,260,052,910,537.25
  5. Step 5: Solve for x
    x = 7,260,052,910,537.25/3,118,031.75
  6. Step 6: Final answer
    x = 2,328,408.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.