Finding the Fourth Proportional to 2,912,694.70, 4,369,698.15 and 891,031.90
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Solution
The fourth proportional to 2,912,694.70, 4,369,698.15 and 891,031.90 is: 1,336,748.56
Step by Step Solution
- Step 1: Write the proportion equation
2,912,694.70 : 4,369,698.15 = 891,031.90 : x - Step 2: Convert to fraction form
2,912,694.70/4,369,698.15 = 891,031.90/x - Step 3: Cross multiply
2,912,694.70x = 4,369,698.15 × 891,031.90 - Step 4: Simplify right side
2,912,694.70x = 3,893,540,445,020.99 - Step 5: Solve for x
x = 3,893,540,445,020.99/2,912,694.70 - Step 6: Final answer
x = 1,336,748.56
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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.