Finding the Fourth Proportional to 2,185,125.68, 3,015,486.08 and 1,218,316.16
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Solution
The fourth proportional to 2,185,125.68, 3,015,486.08 and 1,218,316.16 is: 1,681,283.34
Step by Step Solution
- Step 1: Write the proportion equation
2,185,125.68 : 3,015,486.08 = 1,218,316.16 : x - Step 2: Convert to fraction form
2,185,125.68/3,015,486.08 = 1,218,316.16/x - Step 3: Cross multiply
2,185,125.68x = 3,015,486.08 × 1,218,316.16 - Step 4: Simplify right side
2,185,125.68x = 3,673,815,400,350.04 - Step 5: Solve for x
x = 3,673,815,400,350.04/2,185,125.68 - Step 6: Final answer
x = 1,681,283.34
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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.