Home / 1,328,504.22-1,993,067.37-429,909.66

Finding the Fourth Proportional to 1,328,504.22, 1,993,067.37 and 429,909.66

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Solution

The fourth proportional to 1,328,504.22, 1,993,067.37 and 429,909.66 is: 644,965.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,504.22 : 1,993,067.37 = 429,909.66 : x
  2. Step 2: Convert to fraction form
    1,328,504.22/1,993,067.37 = 429,909.66/x
  3. Step 3: Cross multiply
    1,328,504.22x = 1,993,067.37 × 429,909.66
  4. Step 4: Simplify right side
    1,328,504.22x = 856,838,915,393.79
  5. Step 5: Solve for x
    x = 856,838,915,393.79/1,328,504.22
  6. Step 6: Final answer
    x = 644,965.14

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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.