Finding the Fourth Proportional to 775,416.16, 1,163,122.80 and 242,978
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Solution
The fourth proportional to 775,416.16, 1,163,122.80 and 242,978 is: 364,466.55
Step by Step Solution
- Step 1: Write the proportion equation
775,416.16 : 1,163,122.80 = 242,978 : x - Step 2: Convert to fraction form
775,416.16/1,163,122.80 = 242,978/x - Step 3: Cross multiply
775,416.16x = 1,163,122.80 × 242,978 - Step 4: Simplify right side
775,416.16x = 282,613,251,698.40 - Step 5: Solve for x
x = 282,613,251,698.40/775,416.16 - Step 6: Final answer
x = 364,466.55
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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.