Finding the Fourth Proportional to 2,688,268.32, 3,707,318.36 and 1,961,965.60
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Solution
The fourth proportional to 2,688,268.32, 3,707,318.36 and 1,961,965.60 is: 2,705,693.86
Step by Step Solution
- Step 1: Write the proportion equation
2,688,268.32 : 3,707,318.36 = 1,961,965.60 : x - Step 2: Convert to fraction form
2,688,268.32/3,707,318.36 = 1,961,965.60/x - Step 3: Cross multiply
2,688,268.32x = 3,707,318.36 × 1,961,965.60 - Step 4: Simplify right side
2,688,268.32x = 7,273,631,090,568.42 - Step 5: Solve for x
x = 7,273,631,090,568.42/2,688,268.32 - Step 6: Final answer
x = 2,705,693.86
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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.