Finding the Fourth Proportional to 561,331.69, 775,457.36 and 485,748.97
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Solution
The fourth proportional to 561,331.69, 775,457.36 and 485,748.97 is: 671,042.84
Step by Step Solution
- Step 1: Write the proportion equation
561,331.69 : 775,457.36 = 485,748.97 : x - Step 2: Convert to fraction form
561,331.69/775,457.36 = 485,748.97/x - Step 3: Cross multiply
561,331.69x = 775,457.36 × 485,748.97 - Step 4: Simplify right side
561,331.69x = 376,677,613,898.92 - Step 5: Solve for x
x = 376,677,613,898.92/561,331.69 - Step 6: Final answer
x = 671,042.84
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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.