Finding the Fourth Proportional to 560,639.79, 773,658.88 and 331,270.88
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Solution
The fourth proportional to 560,639.79, 773,658.88 and 331,270.88 is: 457,139.61
Step by Step Solution
- Step 1: Write the proportion equation
560,639.79 : 773,658.88 = 331,270.88 : x - Step 2: Convert to fraction form
560,639.79/773,658.88 = 331,270.88/x - Step 3: Cross multiply
560,639.79x = 773,658.88 × 331,270.88 - Step 4: Simplify right side
560,639.79x = 256,290,653,300.94 - Step 5: Solve for x
x = 256,290,653,300.94/560,639.79 - Step 6: Final answer
x = 457,139.61
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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.