Finding the Fourth Proportional to 558,186.62, 770,274.28 and 316,485.53
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Solution
The fourth proportional to 558,186.62, 770,274.28 and 316,485.53 is: 436,736.85
Step by Step Solution
- Step 1: Write the proportion equation
558,186.62 : 770,274.28 = 316,485.53 : x - Step 2: Convert to fraction form
558,186.62/770,274.28 = 316,485.53/x - Step 3: Cross multiply
558,186.62x = 770,274.28 × 316,485.53 - Step 4: Simplify right side
558,186.62x = 243,780,663,751.17 - Step 5: Solve for x
x = 243,780,663,751.17/558,186.62 - Step 6: Final answer
x = 436,736.85
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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.