Finding the Fourth Proportional to 774,592.14, 1,068,915.78 and 430,419.18
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Solution
The fourth proportional to 774,592.14, 1,068,915.78 and 430,419.18 is: 593,966.59
Step by Step Solution
- Step 1: Write the proportion equation
774,592.14 : 1,068,915.78 = 430,419.18 : x - Step 2: Convert to fraction form
774,592.14/1,068,915.78 = 430,419.18/x - Step 3: Cross multiply
774,592.14x = 1,068,915.78 × 430,419.18 - Step 4: Simplify right side
774,592.14x = 460,081,853,516.66 - Step 5: Solve for x
x = 460,081,853,516.66/774,592.14 - Step 6: Final answer
x = 593,966.59
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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.