Finding the Fourth Proportional to 2,087,591.80, 2,880,827.94 and 1,228,207.48
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Solution
The fourth proportional to 2,087,591.80, 2,880,827.94 and 1,228,207.48 is: 1,694,897.64
Step by Step Solution
- Step 1: Write the proportion equation
2,087,591.80 : 2,880,827.94 = 1,228,207.48 : x - Step 2: Convert to fraction form
2,087,591.80/2,880,827.94 = 1,228,207.48/x - Step 3: Cross multiply
2,087,591.80x = 2,880,827.94 × 1,228,207.48 - Step 4: Simplify right side
2,087,591.80x = 3,538,254,424,500.99 - Step 5: Solve for x
x = 3,538,254,424,500.99/2,087,591.80 - Step 6: Final answer
x = 1,694,897.64
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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.