Finding the Fourth Proportional to 1,350,421.95, 1,863,630.80 and 769,732.70
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Solution
The fourth proportional to 1,350,421.95, 1,863,630.80 and 769,732.70 is: 1,062,258.78
Step by Step Solution
- Step 1: Write the proportion equation
1,350,421.95 : 1,863,630.80 = 769,732.70 : x - Step 2: Convert to fraction form
1,350,421.95/1,863,630.80 = 769,732.70/x - Step 3: Cross multiply
1,350,421.95x = 1,863,630.80 × 769,732.70 - Step 4: Simplify right side
1,350,421.95x = 1,434,497,574,070.57 - Step 5: Solve for x
x = 1,434,497,574,070.57/1,350,421.95 - Step 6: Final answer
x = 1,062,258.78
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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.