Finding the Fourth Proportional to 919,572.96, 1,379,557.96 and 279,926.70
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Solution
The fourth proportional to 919,572.96, 1,379,557.96 and 279,926.70 is: 419,950.48
Step by Step Solution
- Step 1: Write the proportion equation
919,572.96 : 1,379,557.96 = 279,926.70 : x - Step 2: Convert to fraction form
919,572.96/1,379,557.96 = 279,926.70/x - Step 3: Cross multiply
919,572.96x = 1,379,557.96 × 279,926.70 - Step 4: Simplify right side
919,572.96x = 386,175,107,201.53 - Step 5: Solve for x
x = 386,175,107,201.53/919,572.96 - Step 6: Final answer
x = 419,950.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.