Finding the Fourth Proportional to 385,601.76, 578,487.24 and 115,718.40
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Solution
The fourth proportional to 385,601.76, 578,487.24 and 115,718.40 is: 173,602.99
Step by Step Solution
- Step 1: Write the proportion equation
385,601.76 : 578,487.24 = 115,718.40 : x - Step 2: Convert to fraction form
385,601.76/578,487.24 = 115,718.40/x - Step 3: Cross multiply
385,601.76x = 578,487.24 × 115,718.40 - Step 4: Simplify right side
385,601.76x = 66,941,617,833.22 - Step 5: Solve for x
x = 66,941,617,833.22/385,601.76 - Step 6: Final answer
x = 173,602.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.