Finding the Fourth Proportional to 2,579,423.70, 3,869,135.55 and 2,421,959.70
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Solution
The fourth proportional to 2,579,423.70, 3,869,135.55 and 2,421,959.70 is: 3,632,939.55
Step by Step Solution
- Step 1: Write the proportion equation
2,579,423.70 : 3,869,135.55 = 2,421,959.70 : x - Step 2: Convert to fraction form
2,579,423.70/3,869,135.55 = 2,421,959.70/x - Step 3: Cross multiply
2,579,423.70x = 3,869,135.55 × 2,421,959.70 - Step 4: Simplify right side
2,579,423.70x = 9,370,890,375,937.34 - Step 5: Solve for x
x = 9,370,890,375,937.34/2,579,423.70 - Step 6: Final answer
x = 3,632,939.55
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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.