Finding the Fourth Proportional to 405,273.18, 607,908.95 and 380,610.99
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Solution
The fourth proportional to 405,273.18, 607,908.95 and 380,610.99 is: 570,915.72
Step by Step Solution
- Step 1: Write the proportion equation
405,273.18 : 607,908.95 = 380,610.99 : x - Step 2: Convert to fraction form
405,273.18/607,908.95 = 380,610.99/x - Step 3: Cross multiply
405,273.18x = 607,908.95 × 380,610.99 - Step 4: Simplify right side
405,273.18x = 231,376,826,906.08 - Step 5: Solve for x
x = 231,376,826,906.08/405,273.18 - Step 6: Final answer
x = 570,915.72
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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.