Finding the Fourth Proportional to 419,542.40, 578,952.02 and 256,471.99
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Solution
The fourth proportional to 419,542.40, 578,952.02 and 256,471.99 is: 353,921.26
Step by Step Solution
- Step 1: Write the proportion equation
419,542.40 : 578,952.02 = 256,471.99 : x - Step 2: Convert to fraction form
419,542.40/578,952.02 = 256,471.99/x - Step 3: Cross multiply
419,542.40x = 578,952.02 × 256,471.99 - Step 4: Simplify right side
419,542.40x = 148,484,975,877.72 - Step 5: Solve for x
x = 148,484,975,877.72/419,542.40 - Step 6: Final answer
x = 353,921.26
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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.