Finding the Fourth Proportional to 1,286,676.52, 1,929,454.06 and 433,589.18
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Solution
The fourth proportional to 1,286,676.52, 1,929,454.06 and 433,589.18 is: 650,194.82
Step by Step Solution
- Step 1: Write the proportion equation
1,286,676.52 : 1,929,454.06 = 433,589.18 : x - Step 2: Convert to fraction form
1,286,676.52/1,929,454.06 = 433,589.18/x - Step 3: Cross multiply
1,286,676.52x = 1,929,454.06 × 433,589.18 - Step 4: Simplify right side
1,286,676.52x = 836,590,403,723.07 - Step 5: Solve for x
x = 836,590,403,723.07/1,286,676.52 - Step 6: Final answer
x = 650,194.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.