Finding the Fourth Proportional to 494,101.08, 681,609.06 and 312,507.18
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Solution
The fourth proportional to 494,101.08, 681,609.06 and 312,507.18 is: 431,101.52
Step by Step Solution
- Step 1: Write the proportion equation
494,101.08 : 681,609.06 = 312,507.18 : x - Step 2: Convert to fraction form
494,101.08/681,609.06 = 312,507.18/x - Step 3: Cross multiply
494,101.08x = 681,609.06 × 312,507.18 - Step 4: Simplify right side
494,101.08x = 213,007,725,203.05 - Step 5: Solve for x
x = 213,007,725,203.05/494,101.08 - Step 6: Final answer
x = 431,101.52
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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.