Finding the Fourth Proportional to 699,424.05, 1,049,136.08 and 620,692.05
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Solution
The fourth proportional to 699,424.05, 1,049,136.08 and 620,692.05 is: 931,038.08
Step by Step Solution
- Step 1: Write the proportion equation
699,424.05 : 1,049,136.08 = 620,692.05 : x - Step 2: Convert to fraction form
699,424.05/1,049,136.08 = 620,692.05/x - Step 3: Cross multiply
699,424.05x = 1,049,136.08 × 620,692.05 - Step 4: Simplify right side
699,424.05x = 651,190,421,120.70 - Step 5: Solve for x
x = 651,190,421,120.70/699,424.05 - Step 6: Final answer
x = 931,038.08
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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.