Finding the Fourth Proportional to 1,589,459.62, 2,199,230.20 and 1,385,934.60
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Solution
The fourth proportional to 1,589,459.62, 2,199,230.20 and 1,385,934.60 is: 1,917,626.08
Step by Step Solution
- Step 1: Write the proportion equation
1,589,459.62 : 2,199,230.20 = 1,385,934.60 : x - Step 2: Convert to fraction form
1,589,459.62/2,199,230.20 = 1,385,934.60/x - Step 3: Cross multiply
1,589,459.62x = 2,199,230.20 × 1,385,934.60 - Step 4: Simplify right side
1,589,459.62x = 3,047,989,227,544.92 - Step 5: Solve for x
x = 3,047,989,227,544.92/1,589,459.62 - Step 6: Final answer
x = 1,917,626.08
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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.