Finding the Fourth Proportional to 478,523.12, 660,489.24 and 282,461.99
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Solution
The fourth proportional to 478,523.12, 660,489.24 and 282,461.99 is: 389,872.71
Step by Step Solution
- Step 1: Write the proportion equation
478,523.12 : 660,489.24 = 282,461.99 : x - Step 2: Convert to fraction form
478,523.12/660,489.24 = 282,461.99/x - Step 3: Cross multiply
478,523.12x = 660,489.24 × 282,461.99 - Step 4: Simplify right side
478,523.12x = 186,563,102,860.77 - Step 5: Solve for x
x = 186,563,102,860.77/478,523.12 - Step 6: Final answer
x = 389,872.71
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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.