Finding the Fourth Proportional to 505,104.62, 697,060.67 and 287,307.68
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Solution
The fourth proportional to 505,104.62, 697,060.67 and 287,307.68 is: 396,493.86
Step by Step Solution
- Step 1: Write the proportion equation
505,104.62 : 697,060.67 = 287,307.68 : x - Step 2: Convert to fraction form
505,104.62/697,060.67 = 287,307.68/x - Step 3: Cross multiply
505,104.62x = 697,060.67 × 287,307.68 - Step 4: Simplify right side
505,104.62x = 200,270,878,995.10 - Step 5: Solve for x
x = 200,270,878,995.10/505,104.62 - Step 6: Final answer
x = 396,493.86
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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.