Finding the Fourth Proportional to 2,894,934.20, 4,341,623.70 and 1,211,689.40
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Solution
The fourth proportional to 2,894,934.20, 4,341,623.70 and 1,211,689.40 is: 1,817,208.63
Step by Step Solution
- Step 1: Write the proportion equation
2,894,934.20 : 4,341,623.70 = 1,211,689.40 : x - Step 2: Convert to fraction form
2,894,934.20/4,341,623.70 = 1,211,689.40/x - Step 3: Cross multiply
2,894,934.20x = 4,341,623.70 × 1,211,689.40 - Step 4: Simplify right side
2,894,934.20x = 5,260,699,416,078.78 - Step 5: Solve for x
x = 5,260,699,416,078.78/2,894,934.20 - Step 6: Final answer
x = 1,817,208.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.