Finding the Fourth Proportional to 818,943.53, 1,129,540.41 and 542,801.97
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Solution
The fourth proportional to 818,943.53, 1,129,540.41 and 542,801.97 is: 748,667.94
Step by Step Solution
- Step 1: Write the proportion equation
818,943.53 : 1,129,540.41 = 542,801.97 : x - Step 2: Convert to fraction form
818,943.53/1,129,540.41 = 542,801.97/x - Step 3: Cross multiply
818,943.53x = 1,129,540.41 × 542,801.97 - Step 4: Simplify right side
818,943.53x = 613,116,759,742.61 - Step 5: Solve for x
x = 613,116,759,742.61/818,943.53 - Step 6: Final answer
x = 748,667.94
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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.