Finding the Fourth Proportional to 1,207,271.70, 1,810,907.55 and 320,807.70
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Solution
The fourth proportional to 1,207,271.70, 1,810,907.55 and 320,807.70 is: 481,211.55
Step by Step Solution
- Step 1: Write the proportion equation
1,207,271.70 : 1,810,907.55 = 320,807.70 : x - Step 2: Convert to fraction form
1,207,271.70/1,810,907.55 = 320,807.70/x - Step 3: Cross multiply
1,207,271.70x = 1,810,907.55 × 320,807.70 - Step 4: Simplify right side
1,207,271.70x = 580,953,086,028.14 - Step 5: Solve for x
x = 580,953,086,028.14/1,207,271.70 - Step 6: Final answer
x = 481,211.55
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1.5x scale
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.