Finding the Fourth Proportional to 505,696.28, 698,027.18 and 402,519.74
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Solution
The fourth proportional to 505,696.28, 698,027.18 and 402,519.74 is: 555,609.61
Step by Step Solution
- Step 1: Write the proportion equation
505,696.28 : 698,027.18 = 402,519.74 : x - Step 2: Convert to fraction form
505,696.28/698,027.18 = 402,519.74/x - Step 3: Cross multiply
505,696.28x = 698,027.18 × 402,519.74 - Step 4: Simplify right side
505,696.28x = 280,969,713,503.80 - Step 5: Solve for x
x = 280,969,713,503.80/505,696.28 - Step 6: Final answer
x = 555,609.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.