Finding the Fourth Proportional to 565,827.12, 780,856.20 and 311,184.99
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Solution
The fourth proportional to 565,827.12, 780,856.20 and 311,184.99 is: 429,443.41
Step by Step Solution
- Step 1: Write the proportion equation
565,827.12 : 780,856.20 = 311,184.99 : x - Step 2: Convert to fraction form
565,827.12/780,856.20 = 311,184.99/x - Step 3: Cross multiply
565,827.12x = 780,856.20 × 311,184.99 - Step 4: Simplify right side
565,827.12x = 242,990,728,788.44 - Step 5: Solve for x
x = 242,990,728,788.44/565,827.12 - Step 6: Final answer
x = 429,443.41
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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.