Finding the Fourth Proportional to 437,452.80, 656,438.40 and 288,121.20
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Solution
The fourth proportional to 437,452.80, 656,438.40 and 288,121.20 is: 432,352.52
Step by Step Solution
- Step 1: Write the proportion equation
437,452.80 : 656,438.40 = 288,121.20 : x - Step 2: Convert to fraction form
437,452.80/656,438.40 = 288,121.20/x - Step 3: Cross multiply
437,452.80x = 656,438.40 × 288,121.20 - Step 4: Simplify right side
437,452.80x = 189,133,819,534.08 - Step 5: Solve for x
x = 189,133,819,534.08/437,452.80 - Step 6: Final answer
x = 432,352.52
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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.