Finding the Fourth Proportional to 542,022.84, 748,096.29 and 312,728.31
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Solution
The fourth proportional to 542,022.84, 748,096.29 and 312,728.31 is: 431,625.52
Step by Step Solution
- Step 1: Write the proportion equation
542,022.84 : 748,096.29 = 312,728.31 : x - Step 2: Convert to fraction form
542,022.84/748,096.29 = 312,728.31/x - Step 3: Cross multiply
542,022.84x = 748,096.29 × 312,728.31 - Step 4: Simplify right side
542,022.84x = 233,950,888,488.97 - Step 5: Solve for x
x = 233,950,888,488.97/542,022.84 - Step 6: Final answer
x = 431,625.52
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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.