Home / 1,620,334.16-2,428,921.53-647,408.42

Finding the Fourth Proportional to 1,620,334.16, 2,428,921.53 and 647,408.42

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Solution

The fourth proportional to 1,620,334.16, 2,428,921.53 and 647,408.42 is: 970,481.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,334.16 : 2,428,921.53 = 647,408.42 : x
  2. Step 2: Convert to fraction form
    1,620,334.16/2,428,921.53 = 647,408.42/x
  3. Step 3: Cross multiply
    1,620,334.16x = 2,428,921.53 × 647,408.42
  4. Step 4: Simplify right side
    1,620,334.16x = 1,572,504,236,278.15
  5. Step 5: Solve for x
    x = 1,572,504,236,278.15/1,620,334.16
  6. Step 6: Final answer
    x = 970,481.45

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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.