Finding the Fourth Proportional to 1,807,432.21, 2,494,281.90 and 991,621.07
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Solution
The fourth proportional to 1,807,432.21, 2,494,281.90 and 991,621.07 is: 1,368,451.03
Step by Step Solution
- Step 1: Write the proportion equation
1,807,432.21 : 2,494,281.90 = 991,621.07 : x - Step 2: Convert to fraction form
1,807,432.21/2,494,281.90 = 991,621.07/x - Step 3: Cross multiply
1,807,432.21x = 2,494,281.90 × 991,621.07 - Step 4: Simplify right side
1,807,432.21x = 2,473,382,474,088.22 - Step 5: Solve for x
x = 2,473,382,474,088.22/1,807,432.21 - Step 6: Final answer
x = 1,368,451.03
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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.