Finding the Fourth Proportional to 420,288.75, 579,593.88 and 282,777.48
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Solution
The fourth proportional to 420,288.75, 579,593.88 and 282,777.48 is: 389,960.70
Step by Step Solution
- Step 1: Write the proportion equation
420,288.75 : 579,593.88 = 282,777.48 : x - Step 2: Convert to fraction form
420,288.75/579,593.88 = 282,777.48/x - Step 3: Cross multiply
420,288.75x = 579,593.88 × 282,777.48 - Step 4: Simplify right side
420,288.75x = 163,896,096,809.82 - Step 5: Solve for x
x = 163,896,096,809.82/420,288.75 - Step 6: Final answer
x = 389,960.70
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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.