Finding the Fourth Proportional to 1,292,759.21, 1,784,321.72 and 748,806.95
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Solution
The fourth proportional to 1,292,759.21, 1,784,321.72 and 748,806.95 is: 1,033,535.47
Step by Step Solution
- Step 1: Write the proportion equation
1,292,759.21 : 1,784,321.72 = 748,806.95 : x - Step 2: Convert to fraction form
1,292,759.21/1,784,321.72 = 748,806.95/x - Step 3: Cross multiply
1,292,759.21x = 1,784,321.72 × 748,806.95 - Step 4: Simplify right side
1,292,759.21x = 1,336,112,492,306.31 - Step 5: Solve for x
x = 1,336,112,492,306.31/1,292,759.21 - Step 6: Final answer
x = 1,033,535.47
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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.