Finding the Fourth Proportional to 656,305.20, 984,846.60 and 478,364.40
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Solution
The fourth proportional to 656,305.20, 984,846.60 and 478,364.40 is: 717,829.99
Step by Step Solution
- Step 1: Write the proportion equation
656,305.20 : 984,846.60 = 478,364.40 : x - Step 2: Convert to fraction form
656,305.20/984,846.60 = 478,364.40/x - Step 3: Cross multiply
656,305.20x = 984,846.60 × 478,364.40 - Step 4: Simplify right side
656,305.20x = 471,115,552,901.04 - Step 5: Solve for x
x = 471,115,552,901.04/656,305.20 - Step 6: Final answer
x = 717,829.99
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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.