Finding the Fourth Proportional to 859,605.75, 1,289,408.76 and 268,629.75
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Solution
The fourth proportional to 859,605.75, 1,289,408.76 and 268,629.75 is: 402,944.67
Step by Step Solution
- Step 1: Write the proportion equation
859,605.75 : 1,289,408.76 = 268,629.75 : x - Step 2: Convert to fraction form
859,605.75/1,289,408.76 = 268,629.75/x - Step 3: Cross multiply
859,605.75x = 1,289,408.76 × 268,629.75 - Step 4: Simplify right side
859,605.75x = 346,373,552,846.61 - Step 5: Solve for x
x = 346,373,552,846.61/859,605.75 - Step 6: Final answer
x = 402,944.67
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1.5x scale
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.