Finding the Fourth Proportional to 2,212,993.40, 3,054,221.91 and 1,246,312.67
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Solution
The fourth proportional to 2,212,993.40, 3,054,221.91 and 1,246,312.67 is: 1,720,075.38
Step by Step Solution
- Step 1: Write the proportion equation
2,212,993.40 : 3,054,221.91 = 1,246,312.67 : x - Step 2: Convert to fraction form
2,212,993.40/3,054,221.91 = 1,246,312.67/x - Step 3: Cross multiply
2,212,993.40x = 3,054,221.91 × 1,246,312.67 - Step 4: Simplify right side
2,212,993.40x = 3,806,515,463,424.60 - Step 5: Solve for x
x = 3,806,515,463,424.60/2,212,993.40 - Step 6: Final answer
x = 1,720,075.38
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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.