Finding the Fourth Proportional to 874,425.16, 1,311,637.74 and 243,388.18
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Solution
The fourth proportional to 874,425.16, 1,311,637.74 and 243,388.18 is: 365,082.27
Step by Step Solution
- Step 1: Write the proportion equation
874,425.16 : 1,311,637.74 = 243,388.18 : x - Step 2: Convert to fraction form
874,425.16/1,311,637.74 = 243,388.18/x - Step 3: Cross multiply
874,425.16x = 1,311,637.74 × 243,388.18 - Step 4: Simplify right side
874,425.16x = 319,237,122,357.91 - Step 5: Solve for x
x = 319,237,122,357.91/874,425.16 - Step 6: Final answer
x = 365,082.27
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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.