Finding the Fourth Proportional to 874,447.62, 1,311,705.99 and 243,416.58
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Solution
The fourth proportional to 874,447.62, 1,311,705.99 and 243,416.58 is: 365,134.49
Step by Step Solution
- Step 1: Write the proportion equation
874,447.62 : 1,311,705.99 = 243,416.58 : x - Step 2: Convert to fraction form
874,447.62/1,311,705.99 = 243,416.58/x - Step 3: Cross multiply
874,447.62x = 1,311,705.99 × 243,416.58 - Step 4: Simplify right side
874,447.62x = 319,290,986,051.31 - Step 5: Solve for x
x = 319,290,986,051.31/874,447.62 - Step 6: Final answer
x = 365,134.49
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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.