Finding the Fourth Proportional to 563,996.70, 778,310.10 and 305,879.31
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Solution
The fourth proportional to 563,996.70, 778,310.10 and 305,879.31 is: 422,110.55
Step by Step Solution
- Step 1: Write the proportion equation
563,996.70 : 778,310.10 = 305,879.31 : x - Step 2: Convert to fraction form
563,996.70/778,310.10 = 305,879.31/x - Step 3: Cross multiply
563,996.70x = 778,310.10 × 305,879.31 - Step 4: Simplify right side
563,996.70x = 238,068,956,354.03 - Step 5: Solve for x
x = 238,068,956,354.03/563,996.70 - Step 6: Final answer
x = 422,110.55
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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.