Finding the Fourth Proportional to 559,728.84, 772,416.90 and 305,082.12
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Solution
The fourth proportional to 559,728.84, 772,416.90 and 305,082.12 is: 421,008.48
Step by Step Solution
- Step 1: Write the proportion equation
559,728.84 : 772,416.90 = 305,082.12 : x - Step 2: Convert to fraction form
559,728.84/772,416.90 = 305,082.12/x - Step 3: Cross multiply
559,728.84x = 772,416.90 × 305,082.12 - Step 4: Simplify right side
559,728.84x = 235,650,585,375.83 - Step 5: Solve for x
x = 235,650,585,375.83/559,728.84 - Step 6: Final answer
x = 421,008.48
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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.