Finding the Fourth Proportional to 986,230.08, 1,358,989.92 and 680,400
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Solution
The fourth proportional to 986,230.08, 1,358,989.92 and 680,400 is: 937,566.96
Step by Step Solution
- Step 1: Write the proportion equation
986,230.08 : 1,358,989.92 = 680,400 : x - Step 2: Convert to fraction form
986,230.08/1,358,989.92 = 680,400/x - Step 3: Cross multiply
986,230.08x = 1,358,989.92 × 680,400 - Step 4: Simplify right side
986,230.08x = 924,656,741,568 - Step 5: Solve for x
x = 924,656,741,568/986,230.08 - Step 6: Final answer
x = 937,566.96
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1.5x scale
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.