Finding the Fourth Proportional to 1,421,176.95, 1,961,229.11 and 776,597.18
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Solution
The fourth proportional to 1,421,176.95, 1,961,229.11 and 776,597.18 is: 1,071,706.79
Step by Step Solution
- Step 1: Write the proportion equation
1,421,176.95 : 1,961,229.11 = 776,597.18 : x - Step 2: Convert to fraction form
1,421,176.95/1,961,229.11 = 776,597.18/x - Step 3: Cross multiply
1,421,176.95x = 1,961,229.11 × 776,597.18 - Step 4: Simplify right side
1,421,176.95x = 1,523,084,982,470.78 - Step 5: Solve for x
x = 1,523,084,982,470.78/1,421,176.95 - Step 6: Final answer
x = 1,071,706.79
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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.