Finding the Fourth Proportional to 839,489.76, 1,258,597.98 and 434,247.84
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Solution
The fourth proportional to 839,489.76, 1,258,597.98 and 434,247.84 is: 651,042.43
Step by Step Solution
- Step 1: Write the proportion equation
839,489.76 : 1,258,597.98 = 434,247.84 : x - Step 2: Convert to fraction form
839,489.76/1,258,597.98 = 434,247.84/x - Step 3: Cross multiply
839,489.76x = 1,258,597.98 × 434,247.84 - Step 4: Simplify right side
839,489.76x = 546,543,454,243.36 - Step 5: Solve for x
x = 546,543,454,243.36/839,489.76 - Step 6: Final answer
x = 651,042.43
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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.