Finding the Fourth Proportional to 988,943.82, 1,481,496.31 and 728,808.99
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Solution
The fourth proportional to 988,943.82, 1,481,496.31 and 728,808.99 is: 1,091,798.96
Step by Step Solution
- Step 1: Write the proportion equation
988,943.82 : 1,481,496.31 = 728,808.99 : x - Step 2: Convert to fraction form
988,943.82/1,481,496.31 = 728,808.99/x - Step 3: Cross multiply
988,943.82x = 1,481,496.31 × 728,808.99 - Step 4: Simplify right side
988,943.82x = 1,079,727,829,379.83 - Step 5: Solve for x
x = 1,079,727,829,379.83/988,943.82 - Step 6: Final answer
x = 1,091,798.96
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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.