Home / 2,672,940.40-4,009,410.60-989,825.20

Finding the Fourth Proportional to 2,672,940.40, 4,009,410.60 and 989,825.20

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Solution

The fourth proportional to 2,672,940.40, 4,009,410.60 and 989,825.20 is: 1,484,737.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672,940.40 : 4,009,410.60 = 989,825.20 : x
  2. Step 2: Convert to fraction form
    2,672,940.40/4,009,410.60 = 989,825.20/x
  3. Step 3: Cross multiply
    2,672,940.40x = 4,009,410.60 × 989,825.20
  4. Step 4: Simplify right side
    2,672,940.40x = 3,968,615,649,027.12
  5. Step 5: Solve for x
    x = 3,968,615,649,027.12/2,672,940.40
  6. Step 6: Final answer
    x = 1,484,737.80

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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.