Home / 1,287,851.31-1,777,317.66-744,010.02

Finding the Fourth Proportional to 1,287,851.31, 1,777,317.66 and 744,010.02

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Solution

The fourth proportional to 1,287,851.31, 1,777,317.66 and 744,010.02 is: 1,026,781.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,851.31 : 1,777,317.66 = 744,010.02 : x
  2. Step 2: Convert to fraction form
    1,287,851.31/1,777,317.66 = 744,010.02/x
  3. Step 3: Cross multiply
    1,287,851.31x = 1,777,317.66 × 744,010.02
  4. Step 4: Simplify right side
    1,287,851.31x = 1,322,342,147,762.95
  5. Step 5: Solve for x
    x = 1,322,342,147,762.95/1,287,851.31
  6. Step 6: Final answer
    x = 1,026,781.69

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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.