Finding the Fourth Proportional to 437,506.80, 656,519.40 and 318,879.60
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Solution
The fourth proportional to 437,506.80, 656,519.40 and 318,879.60 is: 478,508.32
Step by Step Solution
- Step 1: Write the proportion equation
437,506.80 : 656,519.40 = 318,879.60 : x - Step 2: Convert to fraction form
437,506.80/656,519.40 = 318,879.60/x - Step 3: Cross multiply
437,506.80x = 656,519.40 × 318,879.60 - Step 4: Simplify right side
437,506.80x = 209,350,643,664.24 - Step 5: Solve for x
x = 209,350,643,664.24/437,506.80 - Step 6: Final answer
x = 478,508.32
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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.