Finding the Fourth Proportional to 3,934,941.29, 5,430,075.62 and 2,192,520.65
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Solution
The fourth proportional to 3,934,941.29, 5,430,075.62 and 2,192,520.65 is: 3,025,598.61
Step by Step Solution
- Step 1: Write the proportion equation
3,934,941.29 : 5,430,075.62 = 2,192,520.65 : x - Step 2: Convert to fraction form
3,934,941.29/5,430,075.62 = 2,192,520.65/x - Step 3: Cross multiply
3,934,941.29x = 5,430,075.62 × 2,192,520.65 - Step 4: Simplify right side
3,934,941.29x = 11,905,552,889,798.57 - Step 5: Solve for x
x = 11,905,552,889,798.57/3,934,941.29 - Step 6: Final answer
x = 3,025,598.61
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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.