Finding the Fourth Proportional to 306,977.28, 460,465.92 and 289,651.20
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Solution
The fourth proportional to 306,977.28, 460,465.92 and 289,651.20 is: 434,476.80
Step by Step Solution
- Step 1: Write the proportion equation
306,977.28 : 460,465.92 = 289,651.20 : x - Step 2: Convert to fraction form
306,977.28/460,465.92 = 289,651.20/x - Step 3: Cross multiply
306,977.28x = 460,465.92 × 289,651.20 - Step 4: Simplify right side
306,977.28x = 133,374,506,287.10 - Step 5: Solve for x
x = 133,374,506,287.10/306,977.28 - Step 6: Final answer
x = 434,476.80
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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.