Finding the Fourth Proportional to 714,720.67, 986,307.71 and 392,427.95
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Solution
The fourth proportional to 714,720.67, 986,307.71 and 392,427.95 is: 541,546.82
Step by Step Solution
- Step 1: Write the proportion equation
714,720.67 : 986,307.71 = 392,427.95 : x - Step 2: Convert to fraction form
714,720.67/986,307.71 = 392,427.95/x - Step 3: Cross multiply
714,720.67x = 986,307.71 × 392,427.95 - Step 4: Simplify right side
714,720.67x = 387,054,705,810.82 - Step 5: Solve for x
x = 387,054,705,810.82/714,720.67 - Step 6: Final answer
x = 541,546.82
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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.