Finding the Fourth Proportional to 1,115,129.88, 1,538,886.60 and 605,832.12
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Solution
The fourth proportional to 1,115,129.88, 1,538,886.60 and 605,832.12 is: 836,052.33
Step by Step Solution
- Step 1: Write the proportion equation
1,115,129.88 : 1,538,886.60 = 605,832.12 : x - Step 2: Convert to fraction form
1,115,129.88/1,538,886.60 = 605,832.12/x - Step 3: Cross multiply
1,115,129.88x = 1,538,886.60 × 605,832.12 - Step 4: Simplify right side
1,115,129.88x = 932,306,931,317.59 - Step 5: Solve for x
x = 932,306,931,317.59/1,115,129.88 - Step 6: Final answer
x = 836,052.33
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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.