Finding the Fourth Proportional to 839,519.70, 1,258,885.79 and 306,668.08
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Solution
The fourth proportional to 839,519.70, 1,258,885.79 and 306,668.08 is: 459,858.28
Step by Step Solution
- Step 1: Write the proportion equation
839,519.70 : 1,258,885.79 = 306,668.08 : x - Step 2: Convert to fraction form
839,519.70/1,258,885.79 = 306,668.08/x - Step 3: Cross multiply
839,519.70x = 1,258,885.79 × 306,668.08 - Step 4: Simplify right side
839,519.70x = 386,060,088,158.58 - Step 5: Solve for x
x = 386,060,088,158.58/839,519.70 - Step 6: Final answer
x = 459,858.28
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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.