Home / 1,190,136.51-1,642,382.40-646,267.44

Finding the Fourth Proportional to 1,190,136.51, 1,642,382.40 and 646,267.44

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Solution

The fourth proportional to 1,190,136.51, 1,642,382.40 and 646,267.44 is: 891,845.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,136.51 : 1,642,382.40 = 646,267.44 : x
  2. Step 2: Convert to fraction form
    1,190,136.51/1,642,382.40 = 646,267.44/x
  3. Step 3: Cross multiply
    1,190,136.51x = 1,642,382.40 × 646,267.44
  4. Step 4: Simplify right side
    1,190,136.51x = 1,061,418,269,149.06
  5. Step 5: Solve for x
    x = 1,061,418,269,149.06/1,190,136.51
  6. Step 6: Final answer
    x = 891,845.82

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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.