Finding the Fourth Proportional to 2,167,719.23, 2,991,463.95 and 1,224,738.97
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Solution
The fourth proportional to 2,167,719.23, 2,991,463.95 and 1,224,738.97 is: 1,690,146.22
Step by Step Solution
- Step 1: Write the proportion equation
2,167,719.23 : 2,991,463.95 = 1,224,738.97 : x - Step 2: Convert to fraction form
2,167,719.23/2,991,463.95 = 1,224,738.97/x - Step 3: Cross multiply
2,167,719.23x = 2,991,463.95 × 1,224,738.97 - Step 4: Simplify right side
2,167,719.23x = 3,663,762,474,029.24 - Step 5: Solve for x
x = 3,663,762,474,029.24/2,167,719.23 - Step 6: Final answer
x = 1,690,146.22
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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.