Finding the Fourth Proportional to 739,450.84, 1,020,442.15 and 399,919.09
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Solution
The fourth proportional to 739,450.84, 1,020,442.15 and 399,919.09 is: 551,888.34
Step by Step Solution
- Step 1: Write the proportion equation
739,450.84 : 1,020,442.15 = 399,919.09 : x - Step 2: Convert to fraction form
739,450.84/1,020,442.15 = 399,919.09/x - Step 3: Cross multiply
739,450.84x = 1,020,442.15 × 399,919.09 - Step 4: Simplify right side
739,450.84x = 408,094,296,025.64 - Step 5: Solve for x
x = 408,094,296,025.64/739,450.84 - Step 6: Final answer
x = 551,888.34
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1.5x scale
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.