Finding the Fourth Proportional to 2,110,633.20, 2,912,685.48 and 1,143,764.28
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Solution
The fourth proportional to 2,110,633.20, 2,912,685.48 and 1,143,764.28 is: 1,578,401.03
Step by Step Solution
- Step 1: Write the proportion equation
2,110,633.20 : 2,912,685.48 = 1,143,764.28 : x - Step 2: Convert to fraction form
2,110,633.20/2,912,685.48 = 1,143,764.28/x - Step 3: Cross multiply
2,110,633.20x = 2,912,685.48 × 1,143,764.28 - Step 4: Simplify right side
2,110,633.20x = 3,331,425,610,898.65 - Step 5: Solve for x
x = 3,331,425,610,898.65/2,110,633.20 - Step 6: Final answer
x = 1,578,401.03
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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.