Finding the Fourth Proportional to 1,010,221.20, 1,515,542.40 and 336,511.80
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Solution
The fourth proportional to 1,010,221.20, 1,515,542.40 and 336,511.80 is: 504,837.85
Step by Step Solution
- Step 1: Write the proportion equation
1,010,221.20 : 1,515,542.40 = 336,511.80 : x - Step 2: Convert to fraction form
1,010,221.20/1,515,542.40 = 336,511.80/x - Step 3: Cross multiply
1,010,221.20x = 1,515,542.40 × 336,511.80 - Step 4: Simplify right side
1,010,221.20x = 509,997,901,000.32 - Step 5: Solve for x
x = 509,997,901,000.32/1,010,221.20 - Step 6: Final answer
x = 504,837.85
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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.