Finding the Fourth Proportional to 703,912.81, 971,386.99 and 397,983.91
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Solution
The fourth proportional to 703,912.81, 971,386.99 and 397,983.91 is: 549,210.62
Step by Step Solution
- Step 1: Write the proportion equation
703,912.81 : 971,386.99 = 397,983.91 : x - Step 2: Convert to fraction form
703,912.81/971,386.99 = 397,983.91/x - Step 3: Cross multiply
703,912.81x = 971,386.99 × 397,983.91 - Step 4: Simplify right side
703,912.81x = 386,596,392,403.33 - Step 5: Solve for x
x = 386,596,392,403.33/703,912.81 - Step 6: Final answer
x = 549,210.62
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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.