Finding the Fourth Proportional to 493,605.78, 681,221.64 and 299,968.80
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Solution
The fourth proportional to 493,605.78, 681,221.64 and 299,968.80 is: 413,984.69
Step by Step Solution
- Step 1: Write the proportion equation
493,605.78 : 681,221.64 = 299,968.80 : x - Step 2: Convert to fraction form
493,605.78/681,221.64 = 299,968.80/x - Step 3: Cross multiply
493,605.78x = 681,221.64 × 299,968.80 - Step 4: Simplify right side
493,605.78x = 204,345,236,384.99 - Step 5: Solve for x
x = 204,345,236,384.99/493,605.78 - Step 6: Final answer
x = 413,984.69
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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.