Finding the Fourth Proportional to 1,841,043.64, 2,540,126.91 and 1,187,393.08
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Solution
The fourth proportional to 1,841,043.64, 2,540,126.91 and 1,187,393.08 is: 1,638,271.39
Step by Step Solution
- Step 1: Write the proportion equation
1,841,043.64 : 2,540,126.91 = 1,187,393.08 : x - Step 2: Convert to fraction form
1,841,043.64/2,540,126.91 = 1,187,393.08/x - Step 3: Cross multiply
1,841,043.64x = 2,540,126.91 × 1,187,393.08 - Step 4: Simplify right side
1,841,043.64x = 3,016,129,115,255.78 - Step 5: Solve for x
x = 3,016,129,115,255.78/1,841,043.64 - Step 6: Final answer
x = 1,638,271.39
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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.