Finding the Fourth Proportional to 2,087,570.84, 2,880,798.96 and 1,228,186.42
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Solution
The fourth proportional to 2,087,570.84, 2,880,798.96 and 1,228,186.42 is: 1,694,868.55
Step by Step Solution
- Step 1: Write the proportion equation
2,087,570.84 : 2,880,798.96 = 1,228,186.42 : x - Step 2: Convert to fraction form
2,087,570.84/2,880,798.96 = 1,228,186.42/x - Step 3: Cross multiply
2,087,570.84x = 2,880,798.96 × 1,228,186.42 - Step 4: Simplify right side
2,087,570.84x = 3,538,158,161,422.12 - Step 5: Solve for x
x = 3,538,158,161,422.12/2,087,570.84 - Step 6: Final answer
x = 1,694,868.55
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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.