Finding the Fourth Proportional to 678,296.52, 935,857.26 and 436,718.88
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Solution
The fourth proportional to 678,296.52, 935,857.26 and 436,718.88 is: 602,548.48
Step by Step Solution
- Step 1: Write the proportion equation
678,296.52 : 935,857.26 = 436,718.88 : x - Step 2: Convert to fraction form
678,296.52/935,857.26 = 436,718.88/x - Step 3: Cross multiply
678,296.52x = 935,857.26 × 436,718.88 - Step 4: Simplify right side
678,296.52x = 408,706,534,427.07 - Step 5: Solve for x
x = 408,706,534,427.07/678,296.52 - Step 6: Final answer
x = 602,548.48
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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.