Finding the Fourth Proportional to 426,560.84, 639,960.84 and 186,695.65
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Solution
The fourth proportional to 426,560.84, 639,960.84 and 186,695.65 is: 280,095.81
Step by Step Solution
- Step 1: Write the proportion equation
426,560.84 : 639,960.84 = 186,695.65 : x - Step 2: Convert to fraction form
426,560.84/639,960.84 = 186,695.65/x - Step 3: Cross multiply
426,560.84x = 639,960.84 × 186,695.65 - Step 4: Simplify right side
426,560.84x = 119,477,903,398.44 - Step 5: Solve for x
x = 119,477,903,398.44/426,560.84 - Step 6: Final answer
x = 280,095.81
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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.