Finding the Fourth Proportional to 771,383.55, 1,157,821.56 and 372,305.19
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Solution
The fourth proportional to 771,383.55, 1,157,821.56 and 372,305.19 is: 558,817.95
Step by Step Solution
- Step 1: Write the proportion equation
771,383.55 : 1,157,821.56 = 372,305.19 : x - Step 2: Convert to fraction form
771,383.55/1,157,821.56 = 372,305.19/x - Step 3: Cross multiply
771,383.55x = 1,157,821.56 × 372,305.19 - Step 4: Simplify right side
771,383.55x = 431,062,975,881.90 - Step 5: Solve for x
x = 431,062,975,881.90/771,383.55 - Step 6: Final answer
x = 558,817.95
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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.