Finding the Fourth Proportional to 780,119.68, 1,076,586.40 and 440,638.40
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Solution
The fourth proportional to 780,119.68, 1,076,586.40 and 440,638.40 is: 608,092.99
Step by Step Solution
- Step 1: Write the proportion equation
780,119.68 : 1,076,586.40 = 440,638.40 : x - Step 2: Convert to fraction form
780,119.68/1,076,586.40 = 440,638.40/x - Step 3: Cross multiply
780,119.68x = 1,076,586.40 × 440,638.40 - Step 4: Simplify right side
780,119.68x = 474,385,308,757.76 - Step 5: Solve for x
x = 474,385,308,757.76/780,119.68 - Step 6: Final answer
x = 608,092.99
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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.