Finding the Fourth Proportional to 917,759.25, 1,266,315.75 and 555,112.17
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Solution
The fourth proportional to 917,759.25, 1,266,315.75 and 555,112.17 is: 765,938.65
Step by Step Solution
- Step 1: Write the proportion equation
917,759.25 : 1,266,315.75 = 555,112.17 : x - Step 2: Convert to fraction form
917,759.25/1,266,315.75 = 555,112.17/x - Step 3: Cross multiply
917,759.25x = 1,266,315.75 × 555,112.17 - Step 4: Simplify right side
917,759.25x = 702,947,283,887.68 - Step 5: Solve for x
x = 702,947,283,887.68/917,759.25 - Step 6: Final answer
x = 765,938.65
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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.