Finding the Fourth Proportional to 851,692.05, 1,175,361.29 and 489,188.63
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Solution
The fourth proportional to 851,692.05, 1,175,361.29 and 489,188.63 is: 675,095.38
Step by Step Solution
- Step 1: Write the proportion equation
851,692.05 : 1,175,361.29 = 489,188.63 : x - Step 2: Convert to fraction form
851,692.05/1,175,361.29 = 489,188.63/x - Step 3: Cross multiply
851,692.05x = 1,175,361.29 × 489,188.63 - Step 4: Simplify right side
851,692.05x = 574,973,370,887.38 - Step 5: Solve for x
x = 574,973,370,887.38/851,692.05 - Step 6: Final answer
x = 675,095.38
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1.5x scale
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.