Finding the Fourth Proportional to 980,456.84, 1,470,686.42 and 306,541.68
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Solution
The fourth proportional to 980,456.84, 1,470,686.42 and 306,541.68 is: 459,812.88
Step by Step Solution
- Step 1: Write the proportion equation
980,456.84 : 1,470,686.42 = 306,541.68 : x - Step 2: Convert to fraction form
980,456.84/1,470,686.42 = 306,541.68/x - Step 3: Cross multiply
980,456.84x = 1,470,686.42 × 306,541.68 - Step 4: Simplify right side
980,456.84x = 450,826,684,407.28 - Step 5: Solve for x
x = 450,826,684,407.28/980,456.84 - Step 6: Final answer
x = 459,812.88
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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.