Finding the Fourth Proportional to 912,664.80, 1,366,372.80 and 886,420.80
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Solution
The fourth proportional to 912,664.80, 1,366,372.80 and 886,420.80 is: 1,327,082.27
Step by Step Solution
- Step 1: Write the proportion equation
912,664.80 : 1,366,372.80 = 886,420.80 : x - Step 2: Convert to fraction form
912,664.80/1,366,372.80 = 886,420.80/x - Step 3: Cross multiply
912,664.80x = 1,366,372.80 × 886,420.80 - Step 4: Simplify right side
912,664.80x = 1,211,181,270,474.24 - Step 5: Solve for x
x = 1,211,181,270,474.24/912,664.80 - Step 6: Final answer
x = 1,327,082.27
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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.