Home / 1,367,960.78-2,051,891.76-421,307.30

Finding the Fourth Proportional to 1,367,960.78, 2,051,891.76 and 421,307.30

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Solution

The fourth proportional to 1,367,960.78, 2,051,891.76 and 421,307.30 is: 631,945.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367,960.78 : 2,051,891.76 = 421,307.30 : x
  2. Step 2: Convert to fraction form
    1,367,960.78/2,051,891.76 = 421,307.30/x
  3. Step 3: Cross multiply
    1,367,960.78x = 2,051,891.76 × 421,307.30
  4. Step 4: Simplify right side
    1,367,960.78x = 864,476,977,297.85
  5. Step 5: Solve for x
    x = 864,476,977,297.85/1,367,960.78
  6. Step 6: Final answer
    x = 631,945.73

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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.