Home / 3,138,408.20-4,707,612.30-2,428,945.40

Finding the Fourth Proportional to 3,138,408.20, 4,707,612.30 and 2,428,945.40

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Solution

The fourth proportional to 3,138,408.20, 4,707,612.30 and 2,428,945.40 is: 3,643,418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,408.20 : 4,707,612.30 = 2,428,945.40 : x
  2. Step 2: Convert to fraction form
    3,138,408.20/4,707,612.30 = 2,428,945.40/x
  3. Step 3: Cross multiply
    3,138,408.20x = 4,707,612.30 × 2,428,945.40
  4. Step 4: Simplify right side
    3,138,408.20x = 11,434,533,241,068.42
  5. Step 5: Solve for x
    x = 11,434,533,241,068.42/3,138,408.20
  6. Step 6: Final answer
    x = 3,643,418.10

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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.