Finding the Fourth Proportional to 663,305.96, 915,365.34 and 376,841.80
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Solution
The fourth proportional to 663,305.96, 915,365.34 and 376,841.80 is: 520,043.45
Step by Step Solution
- Step 1: Write the proportion equation
663,305.96 : 915,365.34 = 376,841.80 : x - Step 2: Convert to fraction form
663,305.96/915,365.34 = 376,841.80/x - Step 3: Cross multiply
663,305.96x = 915,365.34 × 376,841.80 - Step 4: Simplify right side
663,305.96x = 344,947,922,383.21 - Step 5: Solve for x
x = 344,947,922,383.21/663,305.96 - Step 6: Final answer
x = 520,043.45
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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.