Home / 1,405,791.90-1,939,951.35-793,969.74

Finding the Fourth Proportional to 1,405,791.90, 1,939,951.35 and 793,969.74

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Solution

The fourth proportional to 1,405,791.90, 1,939,951.35 and 793,969.74 is: 1,095,654.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,791.90 : 1,939,951.35 = 793,969.74 : x
  2. Step 2: Convert to fraction form
    1,405,791.90/1,939,951.35 = 793,969.74/x
  3. Step 3: Cross multiply
    1,405,791.90x = 1,939,951.35 × 793,969.74
  4. Step 4: Simplify right side
    1,405,791.90x = 1,540,262,668,972.15
  5. Step 5: Solve for x
    x = 1,540,262,668,972.15/1,405,791.90
  6. Step 6: Final answer
    x = 1,095,654.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.