Finding the Fourth Proportional to 1,379,513.07, 2,069,245.50 and 620,817.66
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Solution
The fourth proportional to 1,379,513.07, 2,069,245.50 and 620,817.66 is: 931,215.64
Step by Step Solution
- Step 1: Write the proportion equation
1,379,513.07 : 2,069,245.50 = 620,817.66 : x - Step 2: Convert to fraction form
1,379,513.07/2,069,245.50 = 620,817.66/x - Step 3: Cross multiply
1,379,513.07x = 2,069,245.50 × 620,817.66 - Step 4: Simplify right side
1,379,513.07x = 1,284,624,149,275.53 - Step 5: Solve for x
x = 1,284,624,149,275.53/1,379,513.07 - Step 6: Final answer
x = 931,215.64
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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.