Finding the Fourth Proportional to 1,146,245.40, 1,721,204.10 and 911,539.80
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Solution
The fourth proportional to 1,146,245.40, 1,721,204.10 and 911,539.80 is: 1,368,769.76
Step by Step Solution
- Step 1: Write the proportion equation
1,146,245.40 : 1,721,204.10 = 911,539.80 : x - Step 2: Convert to fraction form
1,146,245.40/1,721,204.10 = 911,539.80/x - Step 3: Cross multiply
1,146,245.40x = 1,721,204.10 × 911,539.80 - Step 4: Simplify right side
1,146,245.40x = 1,568,946,041,073.18 - Step 5: Solve for x
x = 1,568,946,041,073.18/1,146,245.40 - Step 6: Final answer
x = 1,368,769.76
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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.