Finding the Fourth Proportional to 1,240,797.99, 1,862,123.40 and 921,686.70
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Solution
The fourth proportional to 1,240,797.99, 1,862,123.40 and 921,686.70 is: 1,383,218.21
Step by Step Solution
- Step 1: Write the proportion equation
1,240,797.99 : 1,862,123.40 = 921,686.70 : x - Step 2: Convert to fraction form
1,240,797.99/1,862,123.40 = 921,686.70/x - Step 3: Cross multiply
1,240,797.99x = 1,862,123.40 × 921,686.70 - Step 4: Simplify right side
1,240,797.99x = 1,716,294,371,538.78 - Step 5: Solve for x
x = 1,716,294,371,538.78/1,240,797.99 - Step 6: Final answer
x = 1,383,218.21
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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.