Finding the Fourth Proportional to 1,989,714.84, 2,745,918.66 and 1,505,439.19
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Solution
The fourth proportional to 1,989,714.84, 2,745,918.66 and 1,505,439.19 is: 2,077,590.96
Step by Step Solution
- Step 1: Write the proportion equation
1,989,714.84 : 2,745,918.66 = 1,505,439.19 : x - Step 2: Convert to fraction form
1,989,714.84/2,745,918.66 = 1,505,439.19/x - Step 3: Cross multiply
1,989,714.84x = 2,745,918.66 × 1,505,439.19 - Step 4: Simplify right side
1,989,714.84x = 4,133,813,563,316.29 - Step 5: Solve for x
x = 4,133,813,563,316.29/1,989,714.84 - Step 6: Final answer
x = 2,077,590.96
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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.