Finding the Fourth Proportional to 408,455.36, 612,879.60 and 307,907.90
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Solution
The fourth proportional to 408,455.36, 612,879.60 and 307,907.90 is: 462,010.02
Step by Step Solution
- Step 1: Write the proportion equation
408,455.36 : 612,879.60 = 307,907.90 : x - Step 2: Convert to fraction form
408,455.36/612,879.60 = 307,907.90/x - Step 3: Cross multiply
408,455.36x = 612,879.60 × 307,907.90 - Step 4: Simplify right side
408,455.36x = 188,710,470,588.84 - Step 5: Solve for x
x = 188,710,470,588.84/408,455.36 - Step 6: Final answer
x = 462,010.02
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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.