Finding the Fourth Proportional to 1,292,157.12, 1,783,146.50 and 719,184.99
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Solution
The fourth proportional to 1,292,157.12, 1,783,146.50 and 719,184.99 is: 992,458.41
Step by Step Solution
- Step 1: Write the proportion equation
1,292,157.12 : 1,783,146.50 = 719,184.99 : x - Step 2: Convert to fraction form
1,292,157.12/1,783,146.50 = 719,184.99/x - Step 3: Cross multiply
1,292,157.12x = 1,783,146.50 × 719,184.99 - Step 4: Simplify right side
1,292,157.12x = 1,282,412,207,604.27 - Step 5: Solve for x
x = 1,282,412,207,604.27/1,292,157.12 - Step 6: Final answer
x = 992,458.41
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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.