Finding the Fourth Proportional to 865,694.70, 1,298,542.05 and 655,742.70
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Solution
The fourth proportional to 865,694.70, 1,298,542.05 and 655,742.70 is: 983,614.05
Step by Step Solution
- Step 1: Write the proportion equation
865,694.70 : 1,298,542.05 = 655,742.70 : x - Step 2: Convert to fraction form
865,694.70/1,298,542.05 = 655,742.70/x - Step 3: Cross multiply
865,694.70x = 1,298,542.05 × 655,742.70 - Step 4: Simplify right side
865,694.70x = 851,509,469,930.54 - Step 5: Solve for x
x = 851,509,469,930.54/865,694.70 - Step 6: Final answer
x = 983,614.05
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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.