Finding the Fourth Proportional to 809,613.70, 1,214,420.55 and 248,575.30
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Solution
The fourth proportional to 809,613.70, 1,214,420.55 and 248,575.30 is: 372,862.95
Step by Step Solution
- Step 1: Write the proportion equation
809,613.70 : 1,214,420.55 = 248,575.30 : x - Step 2: Convert to fraction form
809,613.70/1,214,420.55 = 248,575.30/x - Step 3: Cross multiply
809,613.70x = 1,214,420.55 × 248,575.30 - Step 4: Simplify right side
809,613.70x = 301,874,952,542.42 - Step 5: Solve for x
x = 301,874,952,542.42/809,613.70 - Step 6: Final answer
x = 372,862.95
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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.