Finding the Fourth Proportional to 636,656.91, 878,586.99 and 350,198.79
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Solution
The fourth proportional to 636,656.91, 878,586.99 and 350,198.79 is: 483,274.58
Step by Step Solution
- Step 1: Write the proportion equation
636,656.91 : 878,586.99 = 350,198.79 : x - Step 2: Convert to fraction form
636,656.91/878,586.99 = 350,198.79/x - Step 3: Cross multiply
636,656.91x = 878,586.99 × 350,198.79 - Step 4: Simplify right side
636,656.91x = 307,680,099,056.75 - Step 5: Solve for x
x = 307,680,099,056.75/636,656.91 - Step 6: Final answer
x = 483,274.58
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1.5x scale
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.