Finding the Fourth Proportional to 1,388,423.51, 2,082,681.09 and 477,596.84
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Solution
The fourth proportional to 1,388,423.51, 2,082,681.09 and 477,596.84 is: 716,411.02
Step by Step Solution
- Step 1: Write the proportion equation
1,388,423.51 : 2,082,681.09 = 477,596.84 : x - Step 2: Convert to fraction form
1,388,423.51/2,082,681.09 = 477,596.84/x - Step 3: Cross multiply
1,388,423.51x = 2,082,681.09 × 477,596.84 - Step 4: Simplify right side
1,388,423.51x = 994,681,907,311.76 - Step 5: Solve for x
x = 994,681,907,311.76/1,388,423.51 - Step 6: Final answer
x = 716,411.02
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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.