Home / 2,990,971.20-4,486,456.80-1,097,466.60

Finding the Fourth Proportional to 2,990,971.20, 4,486,456.80 and 1,097,466.60

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Solution

The fourth proportional to 2,990,971.20, 4,486,456.80 and 1,097,466.60 is: 1,646,199.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,971.20 : 4,486,456.80 = 1,097,466.60 : x
  2. Step 2: Convert to fraction form
    2,990,971.20/4,486,456.80 = 1,097,466.60/x
  3. Step 3: Cross multiply
    2,990,971.20x = 4,486,456.80 × 1,097,466.60
  4. Step 4: Simplify right side
    2,990,971.20x = 4,923,736,490,342.88
  5. Step 5: Solve for x
    x = 4,923,736,490,342.88/2,990,971.20
  6. Step 6: Final answer
    x = 1,646,199.90

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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.