Finding the Fourth Proportional to 2,087,592.19, 2,880,828.33 and 1,228,207.70
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Solution
The fourth proportional to 2,087,592.19, 2,880,828.33 and 1,228,207.70 is: 1,694,897.86
Step by Step Solution
- Step 1: Write the proportion equation
2,087,592.19 : 2,880,828.33 = 1,228,207.70 : x - Step 2: Convert to fraction form
2,087,592.19/2,880,828.33 = 1,228,207.70/x - Step 3: Cross multiply
2,087,592.19x = 2,880,828.33 × 1,228,207.70 - Step 4: Simplify right side
2,087,592.19x = 3,538,255,537,284.14 - Step 5: Solve for x
x = 3,538,255,537,284.14/2,087,592.19 - Step 6: Final answer
x = 1,694,897.86
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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.