Finding the Fourth Proportional to 703,403.84, 970,638.18 and 397,506.80
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Solution
The fourth proportional to 703,403.84, 970,638.18 and 397,506.80 is: 548,525.97
Step by Step Solution
- Step 1: Write the proportion equation
703,403.84 : 970,638.18 = 397,506.80 : x - Step 2: Convert to fraction form
703,403.84/970,638.18 = 397,506.80/x - Step 3: Cross multiply
703,403.84x = 970,638.18 × 397,506.80 - Step 4: Simplify right side
703,403.84x = 385,835,276,889.62 - Step 5: Solve for x
x = 385,835,276,889.62/703,403.84 - Step 6: Final answer
x = 548,525.97
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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.