Finding the Fourth Proportional to 456,079.80, 684,119.70 and 189,751.80
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Solution
The fourth proportional to 456,079.80, 684,119.70 and 189,751.80 is: 284,627.70
Step by Step Solution
- Step 1: Write the proportion equation
456,079.80 : 684,119.70 = 189,751.80 : x - Step 2: Convert to fraction form
456,079.80/684,119.70 = 189,751.80/x - Step 3: Cross multiply
456,079.80x = 684,119.70 × 189,751.80 - Step 4: Simplify right side
456,079.80x = 129,812,944,490.46 - Step 5: Solve for x
x = 129,812,944,490.46/456,079.80 - Step 6: Final answer
x = 284,627.70
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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.