Finding the Fourth Proportional to 636,672.68, 878,622.34 and 350,207.28
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Solution
The fourth proportional to 636,672.68, 878,622.34 and 350,207.28 is: 483,293.77
Step by Step Solution
- Step 1: Write the proportion equation
636,672.68 : 878,622.34 = 350,207.28 : x - Step 2: Convert to fraction form
636,672.68/878,622.34 = 350,207.28/x - Step 3: Cross multiply
636,672.68x = 878,622.34 × 350,207.28 - Step 4: Simplify right side
636,672.68x = 307,699,939,838.64 - Step 5: Solve for x
x = 307,699,939,838.64/636,672.68 - Step 6: Final answer
x = 483,293.77
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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.