Finding the Fourth Proportional to 915,452.64, 1,373,239.44 and 316,471.68
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Solution
The fourth proportional to 915,452.64, 1,373,239.44 and 316,471.68 is: 474,728.43
Step by Step Solution
- Step 1: Write the proportion equation
915,452.64 : 1,373,239.44 = 316,471.68 : x - Step 2: Convert to fraction form
915,452.64/1,373,239.44 = 316,471.68/x - Step 3: Cross multiply
915,452.64x = 1,373,239.44 × 316,471.68 - Step 4: Simplify right side
915,452.64x = 434,591,392,619.06 - Step 5: Solve for x
x = 434,591,392,619.06/915,452.64 - Step 6: Final answer
x = 474,728.43
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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.