Finding the Fourth Proportional to 754,541.12, 1,040,739.49 and 512,403.37
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Solution
The fourth proportional to 754,541.12, 1,040,739.49 and 512,403.37 is: 706,758.60
Step by Step Solution
- Step 1: Write the proportion equation
754,541.12 : 1,040,739.49 = 512,403.37 : x - Step 2: Convert to fraction form
754,541.12/1,040,739.49 = 512,403.37/x - Step 3: Cross multiply
754,541.12x = 1,040,739.49 × 512,403.37 - Step 4: Simplify right side
754,541.12x = 533,278,421,968.08 - Step 5: Solve for x
x = 533,278,421,968.08/754,541.12 - Step 6: Final answer
x = 706,758.60
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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.