Finding the Fourth Proportional to 324,622.80, 486,934.20 and 319,957.20
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Solution
The fourth proportional to 324,622.80, 486,934.20 and 319,957.20 is: 479,935.80
Step by Step Solution
- Step 1: Write the proportion equation
324,622.80 : 486,934.20 = 319,957.20 : x - Step 2: Convert to fraction form
324,622.80/486,934.20 = 319,957.20/x - Step 3: Cross multiply
324,622.80x = 486,934.20 × 319,957.20 - Step 4: Simplify right side
324,622.80x = 155,798,103,216.24 - Step 5: Solve for x
x = 155,798,103,216.24/324,622.80 - Step 6: Final answer
x = 479,935.80
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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.