Finding the Fourth Proportional to 686,045.84, 1,029,232.25 and 236,770.58
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Solution
The fourth proportional to 686,045.84, 1,029,232.25 and 236,770.58 is: 355,212.29
Step by Step Solution
- Step 1: Write the proportion equation
686,045.84 : 1,029,232.25 = 236,770.58 : x - Step 2: Convert to fraction form
686,045.84/1,029,232.25 = 236,770.58/x - Step 3: Cross multiply
686,045.84x = 1,029,232.25 × 236,770.58 - Step 4: Simplify right side
686,045.84x = 243,691,915,603.35 - Step 5: Solve for x
x = 243,691,915,603.35/686,045.84 - Step 6: Final answer
x = 355,212.29
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1.5x scale
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.