Finding the Fourth Proportional to 455,660.80, 683,491.20 and 202,940.80
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Solution
The fourth proportional to 455,660.80, 683,491.20 and 202,940.80 is: 304,411.20
Step by Step Solution
- Step 1: Write the proportion equation
455,660.80 : 683,491.20 = 202,940.80 : x - Step 2: Convert to fraction form
455,660.80/683,491.20 = 202,940.80/x - Step 3: Cross multiply
455,660.80x = 683,491.20 × 202,940.80 - Step 4: Simplify right side
455,660.80x = 138,708,250,920.96 - Step 5: Solve for x
x = 138,708,250,920.96/455,660.80 - Step 6: Final answer
x = 304,411.20
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1.5x scale
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.