Home / 1,000,391.88-1,380,024.18-677,991.72

Finding the Fourth Proportional to 1,000,391.88, 1,380,024.18 and 677,991.72

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Solution

The fourth proportional to 1,000,391.88, 1,380,024.18 and 677,991.72 is: 935,278.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,391.88 : 1,380,024.18 = 677,991.72 : x
  2. Step 2: Convert to fraction form
    1,000,391.88/1,380,024.18 = 677,991.72/x
  3. Step 3: Cross multiply
    1,000,391.88x = 1,380,024.18 × 677,991.72
  4. Step 4: Simplify right side
    1,000,391.88x = 935,644,967,439.79
  5. Step 5: Solve for x
    x = 935,644,967,439.79/1,000,391.88
  6. Step 6: Final answer
    x = 935,278.45

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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.