Finding the Fourth Proportional to 313,933.92, 427,432.74 and 312,937.44
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Solution
The fourth proportional to 313,933.92, 427,432.74 and 312,937.44 is: 426,076.00
Step by Step Solution
- Step 1: Write the proportion equation
313,933.92 : 427,432.74 = 312,937.44 : x - Step 2: Convert to fraction form
313,933.92/427,432.74 = 312,937.44/x - Step 3: Cross multiply
313,933.92x = 427,432.74 × 312,937.44 - Step 4: Simplify right side
313,933.92x = 133,759,707,427.79 - Step 5: Solve for x
x = 133,759,707,427.79/313,933.92 - Step 6: Final answer
x = 426,076.00
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.