Finding the Fourth Proportional to 1,693,512.35, 2,338,986.62 and 1,115,320.07
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Solution
The fourth proportional to 1,693,512.35, 2,338,986.62 and 1,115,320.07 is: 1,540,419.07
Step by Step Solution
- Step 1: Write the proportion equation
1,693,512.35 : 2,338,986.62 = 1,115,320.07 : x - Step 2: Convert to fraction form
1,693,512.35/2,338,986.62 = 1,115,320.07/x - Step 3: Cross multiply
1,693,512.35x = 2,338,986.62 × 1,115,320.07 - Step 4: Simplify right side
1,693,512.35x = 2,608,718,721,018.33 - Step 5: Solve for x
x = 2,608,718,721,018.33/1,693,512.35 - Step 6: Final answer
x = 1,540,419.07
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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.