Finding the Fourth Proportional to 402,513.80, 603,770.70 and 284,415.80
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Solution
The fourth proportional to 402,513.80, 603,770.70 and 284,415.80 is: 426,623.70
Step by Step Solution
- Step 1: Write the proportion equation
402,513.80 : 603,770.70 = 284,415.80 : x - Step 2: Convert to fraction form
402,513.80/603,770.70 = 284,415.80/x - Step 3: Cross multiply
402,513.80x = 603,770.70 × 284,415.80 - Step 4: Simplify right side
402,513.80x = 171,721,926,657.06 - Step 5: Solve for x
x = 171,721,926,657.06/402,513.80 - Step 6: Final answer
x = 426,623.70
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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.