Finding the Fourth Proportional to 578,724.19, 868,170.86 and 278,958.26
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Solution
The fourth proportional to 578,724.19, 868,170.86 and 278,958.26 is: 418,478.16
Step by Step Solution
- Step 1: Write the proportion equation
578,724.19 : 868,170.86 = 278,958.26 : x - Step 2: Convert to fraction form
578,724.19/868,170.86 = 278,958.26/x - Step 3: Cross multiply
578,724.19x = 868,170.86 × 278,958.26 - Step 4: Simplify right side
578,724.19x = 242,183,434,310.03 - Step 5: Solve for x
x = 242,183,434,310.03/578,724.19 - Step 6: Final answer
x = 418,478.16
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.