Finding the Fourth Proportional to 2,378,446.42, 3,282,258.17 and 1,290,718
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Solution
The fourth proportional to 2,378,446.42, 3,282,258.17 and 1,290,718 is: 1,781,191.99
Step by Step Solution
- Step 1: Write the proportion equation
2,378,446.42 : 3,282,258.17 = 1,290,718 : x - Step 2: Convert to fraction form
2,378,446.42/3,282,258.17 = 1,290,718/x - Step 3: Cross multiply
2,378,446.42x = 3,282,258.17 × 1,290,718 - Step 4: Simplify right side
2,378,446.42x = 4,236,469,700,666.06 - Step 5: Solve for x
x = 4,236,469,700,666.06/2,378,446.42 - Step 6: Final answer
x = 1,781,191.99
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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.