Finding the Fourth Proportional to 657,998.70, 986,998.05 and 284,021.70
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Solution
The fourth proportional to 657,998.70, 986,998.05 and 284,021.70 is: 426,032.55
Step by Step Solution
- Step 1: Write the proportion equation
657,998.70 : 986,998.05 = 284,021.70 : x - Step 2: Convert to fraction form
657,998.70/986,998.05 = 284,021.70/x - Step 3: Cross multiply
657,998.70x = 986,998.05 × 284,021.70 - Step 4: Simplify right side
657,998.70x = 280,328,864,057.69 - Step 5: Solve for x
x = 280,328,864,057.69/657,998.70 - Step 6: Final answer
x = 426,032.55
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Similar ratio
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1.5x scale
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.