Home / 2,715,038.20-4,073,018.10-821,764.60

Finding the Fourth Proportional to 2,715,038.20, 4,073,018.10 and 821,764.60

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Solution

The fourth proportional to 2,715,038.20, 4,073,018.10 and 821,764.60 is: 1,232,786.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715,038.20 : 4,073,018.10 = 821,764.60 : x
  2. Step 2: Convert to fraction form
    2,715,038.20/4,073,018.10 = 821,764.60/x
  3. Step 3: Cross multiply
    2,715,038.20x = 4,073,018.10 × 821,764.60
  4. Step 4: Simplify right side
    2,715,038.20x = 3,347,062,089,739.26
  5. Step 5: Solve for x
    x = 3,347,062,089,739.26/2,715,038.20
  6. Step 6: Final answer
    x = 1,232,786.37

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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.