Finding the Fourth Proportional to 2,378,447.30, 3,282,259.37 and 1,290,718.87
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Solution
The fourth proportional to 2,378,447.30, 3,282,259.37 and 1,290,718.87 is: 1,781,193.18
Step by Step Solution
- Step 1: Write the proportion equation
2,378,447.30 : 3,282,259.37 = 1,290,718.87 : x - Step 2: Convert to fraction form
2,378,447.30/3,282,259.37 = 1,290,718.87/x - Step 3: Cross multiply
2,378,447.30x = 3,282,259.37 × 1,290,718.87 - Step 4: Simplify right side
2,378,447.30x = 4,236,474,097,694.36 - Step 5: Solve for x
x = 4,236,474,097,694.36/2,378,447.30 - Step 6: Final answer
x = 1,781,193.18
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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.