Finding the Fourth Proportional to 493,814.88, 681,461.36 and 279,024.48
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Solution
The fourth proportional to 493,814.88, 681,461.36 and 279,024.48 is: 385,051.99
Step by Step Solution
- Step 1: Write the proportion equation
493,814.88 : 681,461.36 = 279,024.48 : x - Step 2: Convert to fraction form
493,814.88/681,461.36 = 279,024.48/x - Step 3: Cross multiply
493,814.88x = 681,461.36 × 279,024.48 - Step 4: Simplify right side
493,814.88x = 190,144,401,614.09 - Step 5: Solve for x
x = 190,144,401,614.09/493,814.88 - Step 6: Final answer
x = 385,051.99
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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.