Finding the Fourth Proportional to 1,330,804.62, 1,996,778.79 and 432,521.64
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Solution
The fourth proportional to 1,330,804.62, 1,996,778.79 and 432,521.64 is: 648,968.32
Step by Step Solution
- Step 1: Write the proportion equation
1,330,804.62 : 1,996,778.79 = 432,521.64 : x - Step 2: Convert to fraction form
1,330,804.62/1,996,778.79 = 432,521.64/x - Step 3: Cross multiply
1,330,804.62x = 1,996,778.79 × 432,521.64 - Step 4: Simplify right side
1,330,804.62x = 863,650,036,968.02 - Step 5: Solve for x
x = 863,650,036,968.02/1,330,804.62 - Step 6: Final answer
x = 648,968.32
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1.5x scale
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.