Finding the Fourth Proportional to 688,467.12, 1,033,104.86 and 289,077.18
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Solution
The fourth proportional to 688,467.12, 1,033,104.86 and 289,077.18 is: 433,785.48
Step by Step Solution
- Step 1: Write the proportion equation
688,467.12 : 1,033,104.86 = 289,077.18 : x - Step 2: Convert to fraction form
688,467.12/1,033,104.86 = 289,077.18/x - Step 3: Cross multiply
688,467.12x = 1,033,104.86 × 289,077.18 - Step 4: Simplify right side
688,467.12x = 298,647,039,573.10 - Step 5: Solve for x
x = 298,647,039,573.10/688,467.12 - Step 6: Final answer
x = 433,785.48
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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.