Finding the Fourth Proportional to 1,011,757.13, 1,394,651.93 and 688,912.19
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Solution
The fourth proportional to 1,011,757.13, 1,394,651.93 and 688,912.19 is: 949,627.81
Step by Step Solution
- Step 1: Write the proportion equation
1,011,757.13 : 1,394,651.93 = 688,912.19 : x - Step 2: Convert to fraction form
1,011,757.13/1,394,651.93 = 688,912.19/x - Step 3: Cross multiply
1,011,757.13x = 1,394,651.93 × 688,912.19 - Step 4: Simplify right side
1,011,757.13x = 960,792,710,196.15 - Step 5: Solve for x
x = 960,792,710,196.15/1,011,757.13 - Step 6: Final answer
x = 949,627.81
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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.