Finding the Fourth Proportional to 1,485,369.68, 2,049,236.16 and 840,642.08
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Solution
The fourth proportional to 1,485,369.68, 2,049,236.16 and 840,642.08 is: 1,159,761.22
Step by Step Solution
- Step 1: Write the proportion equation
1,485,369.68 : 2,049,236.16 = 840,642.08 : x - Step 2: Convert to fraction form
1,485,369.68/2,049,236.16 = 840,642.08/x - Step 3: Cross multiply
1,485,369.68x = 2,049,236.16 × 840,642.08 - Step 4: Simplify right side
1,485,369.68x = 1,722,674,147,953.61 - Step 5: Solve for x
x = 1,722,674,147,953.61/1,485,369.68 - Step 6: Final answer
x = 1,159,761.22
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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.