Finding the Fourth Proportional to 688,992.58, 1,033,512.11 and 529,311.21
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Solution
The fourth proportional to 688,992.58, 1,033,512.11 and 529,311.21 is: 793,984.66
Step by Step Solution
- Step 1: Write the proportion equation
688,992.58 : 1,033,512.11 = 529,311.21 : x - Step 2: Convert to fraction form
688,992.58/1,033,512.11 = 529,311.21/x - Step 3: Cross multiply
688,992.58x = 1,033,512.11 × 529,311.21 - Step 4: Simplify right side
688,992.58x = 547,049,540,956.44 - Step 5: Solve for x
x = 547,049,540,956.44/688,992.58 - Step 6: Final answer
x = 793,984.66
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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.