Finding the Fourth Proportional to 922,861.20, 1,384,291.80 and 887,431.80
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Solution
The fourth proportional to 922,861.20, 1,384,291.80 and 887,431.80 is: 1,331,147.70
Step by Step Solution
- Step 1: Write the proportion equation
922,861.20 : 1,384,291.80 = 887,431.80 : x - Step 2: Convert to fraction form
922,861.20/1,384,291.80 = 887,431.80/x - Step 3: Cross multiply
922,861.20x = 1,384,291.80 × 887,431.80 - Step 4: Simplify right side
922,861.20x = 1,228,464,563,799.24 - Step 5: Solve for x
x = 1,228,464,563,799.24/922,861.20 - Step 6: Final answer
x = 1,331,147.70
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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.