Home / 694,635.88-1,041,658.27-428,324.89

Finding the Fourth Proportional to 694,635.88, 1,041,658.27 and 428,324.89

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Solution

The fourth proportional to 694,635.88, 1,041,658.27 and 428,324.89 is: 642,305.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,635.88 : 1,041,658.27 = 428,324.89 : x
  2. Step 2: Convert to fraction form
    694,635.88/1,041,658.27 = 428,324.89/x
  3. Step 3: Cross multiply
    694,635.88x = 1,041,658.27 × 428,324.89
  4. Step 4: Simplify right side
    694,635.88x = 446,168,156,565.43
  5. Step 5: Solve for x
    x = 446,168,156,565.43/694,635.88
  6. Step 6: Final answer
    x = 642,305.09

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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.