Home / 1,000,392.88-1,380,025.56-677,992.72

Finding the Fourth Proportional to 1,000,392.88, 1,380,025.56 and 677,992.72

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Solution

The fourth proportional to 1,000,392.88, 1,380,025.56 and 677,992.72 is: 935,279.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,392.88 : 1,380,025.56 = 677,992.72 : x
  2. Step 2: Convert to fraction form
    1,000,392.88/1,380,025.56 = 677,992.72/x
  3. Step 3: Cross multiply
    1,000,392.88x = 1,380,025.56 × 677,992.72
  4. Step 4: Simplify right side
    1,000,392.88x = 935,647,283,093.92
  5. Step 5: Solve for x
    x = 935,647,283,093.92/1,000,392.88
  6. Step 6: Final answer
    x = 935,279.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.