Finding the Fourth Proportional to 1,081,431.68, 1,492,383.46 and 591,403.36
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Solution
The fourth proportional to 1,081,431.68, 1,492,383.46 and 591,403.36 is: 816,140.87
Step by Step Solution
- Step 1: Write the proportion equation
1,081,431.68 : 1,492,383.46 = 591,403.36 : x - Step 2: Convert to fraction form
1,081,431.68/1,492,383.46 = 591,403.36/x - Step 3: Cross multiply
1,081,431.68x = 1,492,383.46 × 591,403.36 - Step 4: Simplify right side
1,081,431.68x = 882,600,592,652.43 - Step 5: Solve for x
x = 882,600,592,652.43/1,081,431.68 - Step 6: Final answer
x = 816,140.87
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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.