Finding the Fourth Proportional to 991,549.98, 1,368,227.70 and 561,738.06
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Solution
The fourth proportional to 991,549.98, 1,368,227.70 and 561,738.06 is: 775,135.48
Step by Step Solution
- Step 1: Write the proportion equation
991,549.98 : 1,368,227.70 = 561,738.06 : x - Step 2: Convert to fraction form
991,549.98/1,368,227.70 = 561,738.06/x - Step 3: Cross multiply
991,549.98x = 1,368,227.70 × 561,738.06 - Step 4: Simplify right side
991,549.98x = 768,585,573,836.26 - Step 5: Solve for x
x = 768,585,573,836.26/991,549.98 - Step 6: Final answer
x = 775,135.48
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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.