Finding the Fourth Proportional to 636,665.68, 878,599.08 and 350,207.56
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Solution
The fourth proportional to 636,665.68, 878,599.08 and 350,207.56 is: 483,286.68
Step by Step Solution
- Step 1: Write the proportion equation
636,665.68 : 878,599.08 = 350,207.56 : x - Step 2: Convert to fraction form
636,665.68/878,599.08 = 350,207.56/x - Step 3: Cross multiply
636,665.68x = 878,599.08 × 350,207.56 - Step 4: Simplify right side
636,665.68x = 307,692,040,025.05 - Step 5: Solve for x
x = 307,692,040,025.05/636,665.68 - Step 6: Final answer
x = 483,286.68
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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.