Finding the Fourth Proportional to 691,335.95, 954,047.57 and 385,431.75
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Solution
The fourth proportional to 691,335.95, 954,047.57 and 385,431.75 is: 531,898.02
Step by Step Solution
- Step 1: Write the proportion equation
691,335.95 : 954,047.57 = 385,431.75 : x - Step 2: Convert to fraction form
691,335.95/954,047.57 = 385,431.75/x - Step 3: Cross multiply
691,335.95x = 954,047.57 × 385,431.75 - Step 4: Simplify right side
691,335.95x = 367,720,222,561.19 - Step 5: Solve for x
x = 367,720,222,561.19/691,335.95 - Step 6: Final answer
x = 531,898.02
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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.