Finding the Fourth Proportional to 1,686,855.16, 2,327,918.19 and 922,908.72
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Solution
The fourth proportional to 1,686,855.16, 2,327,918.19 and 922,908.72 is: 1,273,645.80
Step by Step Solution
- Step 1: Write the proportion equation
1,686,855.16 : 2,327,918.19 = 922,908.72 : x - Step 2: Convert to fraction form
1,686,855.16/2,327,918.19 = 922,908.72/x - Step 3: Cross multiply
1,686,855.16x = 2,327,918.19 × 922,908.72 - Step 4: Simplify right side
1,686,855.16x = 2,148,455,996,997.62 - Step 5: Solve for x
x = 2,148,455,996,997.62/1,686,855.16 - Step 6: Final answer
x = 1,273,645.80
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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.