Finding the Fourth Proportional to 680,122.44, 938,576.16 and 374,202.86
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Solution
The fourth proportional to 680,122.44, 938,576.16 and 374,202.86 is: 516,403.90
Step by Step Solution
- Step 1: Write the proportion equation
680,122.44 : 938,576.16 = 374,202.86 : x - Step 2: Convert to fraction form
680,122.44/938,576.16 = 374,202.86/x - Step 3: Cross multiply
680,122.44x = 938,576.16 × 374,202.86 - Step 4: Simplify right side
680,122.44x = 351,217,878,706.94 - Step 5: Solve for x
x = 351,217,878,706.94/680,122.44 - Step 6: Final answer
x = 516,403.90
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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.