Finding the Fourth Proportional to 420,739.07, 631,104.04 and 336,102.17
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Solution
The fourth proportional to 420,739.07, 631,104.04 and 336,102.17 is: 504,149.61
Step by Step Solution
- Step 1: Write the proportion equation
420,739.07 : 631,104.04 = 336,102.17 : x - Step 2: Convert to fraction form
420,739.07/631,104.04 = 336,102.17/x - Step 3: Cross multiply
420,739.07x = 631,104.04 × 336,102.17 - Step 4: Simplify right side
420,739.07x = 212,115,435,813.38 - Step 5: Solve for x
x = 212,115,435,813.38/420,739.07 - Step 6: Final answer
x = 504,149.61
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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.