Finding the Fourth Proportional to 419,119.08, 578,433.60 and 235,387.84
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Solution
The fourth proportional to 419,119.08, 578,433.60 and 235,387.84 is: 324,862.89
Step by Step Solution
- Step 1: Write the proportion equation
419,119.08 : 578,433.60 = 235,387.84 : x - Step 2: Convert to fraction form
419,119.08/578,433.60 = 235,387.84/x - Step 3: Cross multiply
419,119.08x = 578,433.60 × 235,387.84 - Step 4: Simplify right side
419,119.08x = 136,156,235,687.42 - Step 5: Solve for x
x = 136,156,235,687.42/419,119.08 - Step 6: Final answer
x = 324,862.89
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1.5x scale
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.