Home / 3,478,274.80-5,217,412.20-2,638,466.80

Finding the Fourth Proportional to 3,478,274.80, 5,217,412.20 and 2,638,466.80

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Solution

The fourth proportional to 3,478,274.80, 5,217,412.20 and 2,638,466.80 is: 3,957,700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478,274.80 : 5,217,412.20 = 2,638,466.80 : x
  2. Step 2: Convert to fraction form
    3,478,274.80/5,217,412.20 = 2,638,466.80/x
  3. Step 3: Cross multiply
    3,478,274.80x = 5,217,412.20 × 2,638,466.80
  4. Step 4: Simplify right side
    3,478,274.80x = 13,765,968,871,614.96
  5. Step 5: Solve for x
    x = 13,765,968,871,614.96/3,478,274.80
  6. Step 6: Final answer
    x = 3,957,700.20

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.