Finding the Fourth Proportional to 1,912,177.55, 2,638,704.84 and 1,052,569.91
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Solution
The fourth proportional to 1,912,177.55, 2,638,704.84 and 1,052,569.91 is: 1,452,491.33
Step by Step Solution
- Step 1: Write the proportion equation
1,912,177.55 : 2,638,704.84 = 1,052,569.91 : x - Step 2: Convert to fraction form
1,912,177.55/2,638,704.84 = 1,052,569.91/x - Step 3: Cross multiply
1,912,177.55x = 2,638,704.84 × 1,052,569.91 - Step 4: Simplify right side
1,912,177.55x = 2,777,421,315,955.36 - Step 5: Solve for x
x = 2,777,421,315,955.36/1,912,177.55 - Step 6: Final answer
x = 1,452,491.33
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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.