Finding the Fourth Proportional to 428,501.79, 643,043.07 and 175,827.96
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Solution
The fourth proportional to 428,501.79, 643,043.07 and 175,827.96 is: 263,861.09
Step by Step Solution
- Step 1: Write the proportion equation
428,501.79 : 643,043.07 = 175,827.96 : x - Step 2: Convert to fraction form
428,501.79/643,043.07 = 175,827.96/x - Step 3: Cross multiply
428,501.79x = 643,043.07 × 175,827.96 - Step 4: Simplify right side
428,501.79x = 113,064,951,190.24 - Step 5: Solve for x
x = 113,064,951,190.24/428,501.79 - Step 6: Final answer
x = 263,861.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.