Home / 3,130,371.20-4,695,556.80-2,420,908.40

Finding the Fourth Proportional to 3,130,371.20, 4,695,556.80 and 2,420,908.40

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Solution

The fourth proportional to 3,130,371.20, 4,695,556.80 and 2,420,908.40 is: 3,631,362.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130,371.20 : 4,695,556.80 = 2,420,908.40 : x
  2. Step 2: Convert to fraction form
    3,130,371.20/4,695,556.80 = 2,420,908.40/x
  3. Step 3: Cross multiply
    3,130,371.20x = 4,695,556.80 × 2,420,908.40
  4. Step 4: Simplify right side
    3,130,371.20x = 11,367,512,899,797.12
  5. Step 5: Solve for x
    x = 11,367,512,899,797.12/3,130,371.20
  6. Step 6: Final answer
    x = 3,631,362.60

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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.