Finding the Fourth Proportional to 703,058.81, 970,280.84 and 397,191.26
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Solution
The fourth proportional to 703,058.81, 970,280.84 and 397,191.26 is: 548,157.66
Step by Step Solution
- Step 1: Write the proportion equation
703,058.81 : 970,280.84 = 397,191.26 : x - Step 2: Convert to fraction form
703,058.81/970,280.84 = 397,191.26/x - Step 3: Cross multiply
703,058.81x = 970,280.84 × 397,191.26 - Step 4: Simplify right side
703,058.81x = 385,387,072,812.14 - Step 5: Solve for x
x = 385,387,072,812.14/703,058.81 - Step 6: Final answer
x = 548,157.66
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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.