Finding the Fourth Proportional to 703,918.82, 971,395.26 and 397,989.92
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Solution
The fourth proportional to 703,918.82, 971,395.26 and 397,989.92 is: 549,218.90
Step by Step Solution
- Step 1: Write the proportion equation
703,918.82 : 971,395.26 = 397,989.92 : x - Step 2: Convert to fraction form
703,918.82/971,395.26 = 397,989.92/x - Step 3: Cross multiply
703,918.82x = 971,395.26 × 397,989.92 - Step 4: Simplify right side
703,918.82x = 386,605,521,815.78 - Step 5: Solve for x
x = 386,605,521,815.78/703,918.82 - Step 6: Final answer
x = 549,218.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.