Finding the Fourth Proportional to 1,860,146.28, 2,789,133.44 and 721,578.06
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Solution
The fourth proportional to 1,860,146.28, 2,789,133.44 and 721,578.06 is: 1,081,945.82
Step by Step Solution
- Step 1: Write the proportion equation
1,860,146.28 : 2,789,133.44 = 721,578.06 : x - Step 2: Convert to fraction form
1,860,146.28/2,789,133.44 = 721,578.06/x - Step 3: Cross multiply
1,860,146.28x = 2,789,133.44 × 721,578.06 - Step 4: Simplify right side
1,860,146.28x = 2,012,577,493,108.44 - Step 5: Solve for x
x = 2,012,577,493,108.44/1,860,146.28 - Step 6: Final answer
x = 1,081,945.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.