Finding the Fourth Proportional to 775,874.16, 1,163,811.24 and 243,437.76
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Solution
The fourth proportional to 775,874.16, 1,163,811.24 and 243,437.76 is: 365,156.64
Step by Step Solution
- Step 1: Write the proportion equation
775,874.16 : 1,163,811.24 = 243,437.76 : x - Step 2: Convert to fraction form
775,874.16/1,163,811.24 = 243,437.76/x - Step 3: Cross multiply
775,874.16x = 1,163,811.24 × 243,437.76 - Step 4: Simplify right side
775,874.16x = 283,315,601,328.42 - Step 5: Solve for x
x = 283,315,601,328.42/775,874.16 - Step 6: Final answer
x = 365,156.64
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Similar ratio
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1.5x scale
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.