Finding the Fourth Proportional to 428,366.95, 590,956.49 and 247,035.49
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Solution
The fourth proportional to 428,366.95, 590,956.49 and 247,035.49 is: 340,799.46
Step by Step Solution
- Step 1: Write the proportion equation
428,366.95 : 590,956.49 = 247,035.49 : x - Step 2: Convert to fraction form
428,366.95/590,956.49 = 247,035.49/x - Step 3: Cross multiply
428,366.95x = 590,956.49 × 247,035.49 - Step 4: Simplify right side
428,366.95x = 145,987,225,216.03 - Step 5: Solve for x
x = 145,987,225,216.03/428,366.95 - Step 6: Final answer
x = 340,799.46
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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.