Finding the Fourth Proportional to 3,784,485.21, 5,223,266.69 and 2,256,690.75
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Solution
The fourth proportional to 3,784,485.21, 5,223,266.69 and 2,256,690.75 is: 3,114,636.99
Step by Step Solution
- Step 1: Write the proportion equation
3,784,485.21 : 5,223,266.69 = 2,256,690.75 : x - Step 2: Convert to fraction form
3,784,485.21/5,223,266.69 = 2,256,690.75/x - Step 3: Cross multiply
3,784,485.21x = 5,223,266.69 × 2,256,690.75 - Step 4: Simplify right side
3,784,485.21x = 11,787,297,612,822.66 - Step 5: Solve for x
x = 11,787,297,612,822.66/3,784,485.21 - Step 6: Final answer
x = 3,114,636.99
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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.