Finding the Fourth Proportional to 702,803.20, 1,051,785.60 and 422,521.60
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Solution
The fourth proportional to 702,803.20, 1,051,785.60 and 422,521.60 is: 632,327.99
Step by Step Solution
- Step 1: Write the proportion equation
702,803.20 : 1,051,785.60 = 422,521.60 : x - Step 2: Convert to fraction form
702,803.20/1,051,785.60 = 422,521.60/x - Step 3: Cross multiply
702,803.20x = 1,051,785.60 × 422,521.60 - Step 4: Simplify right side
702,803.20x = 444,402,134,568.96 - Step 5: Solve for x
x = 444,402,134,568.96/702,803.20 - Step 6: Final answer
x = 632,327.99
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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.