Home / 2,020,863-2,788,791.20-1,115,445.24

Finding the Fourth Proportional to 2,020,863, 2,788,791.20 and 1,115,445.24

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Solution

The fourth proportional to 2,020,863, 2,788,791.20 and 1,115,445.24 is: 1,539,314.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020,863 : 2,788,791.20 = 1,115,445.24 : x
  2. Step 2: Convert to fraction form
    2,020,863/2,788,791.20 = 1,115,445.24/x
  3. Step 3: Cross multiply
    2,020,863x = 2,788,791.20 × 1,115,445.24
  4. Step 4: Simplify right side
    2,020,863x = 3,110,743,869,393.89
  5. Step 5: Solve for x
    x = 3,110,743,869,393.89/2,020,863
  6. Step 6: Final answer
    x = 1,539,314.57

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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.