Home / 694,536.40-1,040,166.20-429,115.60

Finding the Fourth Proportional to 694,536.40, 1,040,166.20 and 429,115.60

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Solution

The fourth proportional to 694,536.40, 1,040,166.20 and 429,115.60 is: 642,661.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,536.40 : 1,040,166.20 = 429,115.60 : x
  2. Step 2: Convert to fraction form
    694,536.40/1,040,166.20 = 429,115.60/x
  3. Step 3: Cross multiply
    694,536.40x = 1,040,166.20 × 429,115.60
  4. Step 4: Simplify right side
    694,536.40x = 446,351,543,012.72
  5. Step 5: Solve for x
    x = 446,351,543,012.72/694,536.40
  6. Step 6: Final answer
    x = 642,661.12

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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.