Finding the Fourth Proportional to 1,402,390.18, 2,102,836.78 and 727,792.21
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Solution
The fourth proportional to 1,402,390.18, 2,102,836.78 and 727,792.21 is: 1,091,299.87
Step by Step Solution
- Step 1: Write the proportion equation
1,402,390.18 : 2,102,836.78 = 727,792.21 : x - Step 2: Convert to fraction form
1,402,390.18/2,102,836.78 = 727,792.21/x - Step 3: Cross multiply
1,402,390.18x = 2,102,836.78 × 727,792.21 - Step 4: Simplify right side
1,402,390.18x = 1,530,428,227,385.48 - Step 5: Solve for x
x = 1,530,428,227,385.48/1,402,390.18 - Step 6: Final answer
x = 1,091,299.87
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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.