Finding the Fourth Proportional to 1,603,905.88, 2,405,863.76 and 405,827.95
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Solution
The fourth proportional to 1,603,905.88, 2,405,863.76 and 405,827.95 is: 608,743.17
Step by Step Solution
- Step 1: Write the proportion equation
1,603,905.88 : 2,405,863.76 = 405,827.95 : x - Step 2: Convert to fraction form
1,603,905.88/2,405,863.76 = 405,827.95/x - Step 3: Cross multiply
1,603,905.88x = 2,405,863.76 × 405,827.95 - Step 4: Simplify right side
1,603,905.88x = 976,366,757,700.09 - Step 5: Solve for x
x = 976,366,757,700.09/1,603,905.88 - Step 6: Final answer
x = 608,743.17
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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.