Finding the Fourth Proportional to 781,453.07, 1,078,450.43 and 437,285.99
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Solution
The fourth proportional to 781,453.07, 1,078,450.43 and 437,285.99 is: 603,479.96
Step by Step Solution
- Step 1: Write the proportion equation
781,453.07 : 1,078,450.43 = 437,285.99 : x - Step 2: Convert to fraction form
781,453.07/1,078,450.43 = 437,285.99/x - Step 3: Cross multiply
781,453.07x = 1,078,450.43 × 437,285.99 - Step 4: Simplify right side
781,453.07x = 471,591,263,948.48 - Step 5: Solve for x
x = 471,591,263,948.48/781,453.07 - Step 6: Final answer
x = 603,479.96
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1.5x scale
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.