Home / 1,638,475.59-2,261,317.65-993,791.73

Finding the Fourth Proportional to 1,638,475.59, 2,261,317.65 and 993,791.73

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Solution

The fourth proportional to 1,638,475.59, 2,261,317.65 and 993,791.73 is: 1,371,566.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,475.59 : 2,261,317.65 = 993,791.73 : x
  2. Step 2: Convert to fraction form
    1,638,475.59/2,261,317.65 = 993,791.73/x
  3. Step 3: Cross multiply
    1,638,475.59x = 2,261,317.65 × 993,791.73
  4. Step 4: Simplify right side
    1,638,475.59x = 2,247,278,779,473.03
  5. Step 5: Solve for x
    x = 2,247,278,779,473.03/1,638,475.59
  6. Step 6: Final answer
    x = 1,371,566.84

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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.