Home / 3,118,031.25-4,302,896.09-1,687,247.25

Finding the Fourth Proportional to 3,118,031.25, 4,302,896.09 and 1,687,247.25

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Solution

The fourth proportional to 3,118,031.25, 4,302,896.09 and 1,687,247.25 is: 2,328,408.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,031.25 : 4,302,896.09 = 1,687,247.25 : x
  2. Step 2: Convert to fraction form
    3,118,031.25/4,302,896.09 = 1,687,247.25/x
  3. Step 3: Cross multiply
    3,118,031.25x = 4,302,896.09 × 1,687,247.25
  4. Step 4: Simplify right side
    3,118,031.25x = 7,260,049,586,452.02
  5. Step 5: Solve for x
    x = 7,260,049,586,452.02/3,118,031.25
  6. Step 6: Final answer
    x = 2,328,408.22

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Double scale
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Similar ratio
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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.