Finding the Fourth Proportional to 1,129,762.26, 1,559,084.08 and 620,464.63
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Solution
The fourth proportional to 1,129,762.26, 1,559,084.08 and 620,464.63 is: 856,247.87
Step by Step Solution
- Step 1: Write the proportion equation
1,129,762.26 : 1,559,084.08 = 620,464.63 : x - Step 2: Convert to fraction form
1,129,762.26/1,559,084.08 = 620,464.63/x - Step 3: Cross multiply
1,129,762.26x = 1,559,084.08 × 620,464.63 - Step 4: Simplify right side
1,129,762.26x = 967,356,526,836.09 - Step 5: Solve for x
x = 967,356,526,836.09/1,129,762.26 - Step 6: Final answer
x = 856,247.87
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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.