Finding the Fourth Proportional to 703,128.54, 970,377.06 and 397,261.14
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Solution
The fourth proportional to 703,128.54, 970,377.06 and 397,261.14 is: 548,254.09
Step by Step Solution
- Step 1: Write the proportion equation
703,128.54 : 970,377.06 = 397,261.14 : x - Step 2: Convert to fraction form
703,128.54/970,377.06 = 397,261.14/x - Step 3: Cross multiply
703,128.54x = 970,377.06 × 397,261.14 - Step 4: Simplify right side
703,128.54x = 385,493,097,085.45 - Step 5: Solve for x
x = 385,493,097,085.45/703,128.54 - Step 6: Final answer
x = 548,254.09
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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.