Finding the Fourth Proportional to 878,660.70, 1,318,239.09 and 247,579.98
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Solution
The fourth proportional to 878,660.70, 1,318,239.09 and 247,579.98 is: 371,439.86
Step by Step Solution
- Step 1: Write the proportion equation
878,660.70 : 1,318,239.09 = 247,579.98 : x - Step 2: Convert to fraction form
878,660.70/1,318,239.09 = 247,579.98/x - Step 3: Cross multiply
878,660.70x = 1,318,239.09 × 247,579.98 - Step 4: Simplify right side
878,660.70x = 326,369,607,537.42 - Step 5: Solve for x
x = 326,369,607,537.42/878,660.70 - Step 6: Final answer
x = 371,439.86
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1.5x scale
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.