Finding the Fourth Proportional to 417,981.40, 576,990.81 and 282,199.18
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Solution
The fourth proportional to 417,981.40, 576,990.81 and 282,199.18 is: 389,554.02
Step by Step Solution
- Step 1: Write the proportion equation
417,981.40 : 576,990.81 = 282,199.18 : x - Step 2: Convert to fraction form
417,981.40/576,990.81 = 282,199.18/x - Step 3: Cross multiply
417,981.40x = 576,990.81 × 282,199.18 - Step 4: Simplify right side
417,981.40x = 162,826,333,449.54 - Step 5: Solve for x
x = 162,826,333,449.54/417,981.40 - Step 6: Final answer
x = 389,554.02
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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.