Finding the Fourth Proportional to 692,520.36, 1,039,146.18 and 491,415.84
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Solution
The fourth proportional to 692,520.36, 1,039,146.18 and 491,415.84 is: 737,383.22
Step by Step Solution
- Step 1: Write the proportion equation
692,520.36 : 1,039,146.18 = 491,415.84 : x - Step 2: Convert to fraction form
692,520.36/1,039,146.18 = 491,415.84/x - Step 3: Cross multiply
692,520.36x = 1,039,146.18 × 491,415.84 - Step 4: Simplify right side
692,520.36x = 510,652,892,927.49 - Step 5: Solve for x
x = 510,652,892,927.49/692,520.36 - Step 6: Final answer
x = 737,383.22
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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.