Home / 1,992,186.30-2,987,890.65-644,022.30

Finding the Fourth Proportional to 1,992,186.30, 2,987,890.65 and 644,022.30

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Solution

The fourth proportional to 1,992,186.30, 2,987,890.65 and 644,022.30 is: 965,907.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,186.30 : 2,987,890.65 = 644,022.30 : x
  2. Step 2: Convert to fraction form
    1,992,186.30/2,987,890.65 = 644,022.30/x
  3. Step 3: Cross multiply
    1,992,186.30x = 2,987,890.65 × 644,022.30
  4. Step 4: Simplify right side
    1,992,186.30x = 1,924,268,208,561.50
  5. Step 5: Solve for x
    x = 1,924,268,208,561.50/1,992,186.30
  6. Step 6: Final answer
    x = 965,907.76

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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.