Finding the Fourth Proportional to 392,465.80, 588,698.70 and 366,221.80
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Solution
The fourth proportional to 392,465.80, 588,698.70 and 366,221.80 is: 549,332.70
Step by Step Solution
- Step 1: Write the proportion equation
392,465.80 : 588,698.70 = 366,221.80 : x - Step 2: Convert to fraction form
392,465.80/588,698.70 = 366,221.80/x - Step 3: Cross multiply
392,465.80x = 588,698.70 × 366,221.80 - Step 4: Simplify right side
392,465.80x = 215,594,297,571.66 - Step 5: Solve for x
x = 215,594,297,571.66/392,465.80 - Step 6: Final answer
x = 549,332.70
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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.