Finding the Fourth Proportional to 839,521.71, 1,258,888.80 and 306,670.08
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Solution
The fourth proportional to 839,521.71, 1,258,888.80 and 306,670.08 is: 459,861.28
Step by Step Solution
- Step 1: Write the proportion equation
839,521.71 : 1,258,888.80 = 306,670.08 : x - Step 2: Convert to fraction form
839,521.71/1,258,888.80 = 306,670.08/x - Step 3: Cross multiply
839,521.71x = 1,258,888.80 × 306,670.08 - Step 4: Simplify right side
839,521.71x = 386,063,529,007.10 - Step 5: Solve for x
x = 386,063,529,007.10/839,521.71 - Step 6: Final answer
x = 459,861.28
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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.