Finding the Fourth Proportional to 664,579.80, 996,869.70 and 664,579.80
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Solution
The fourth proportional to 664,579.80, 996,869.70 and 664,579.80 is: 996,869.70
Step by Step Solution
- Step 1: Write the proportion equation
664,579.80 : 996,869.70 = 664,579.80 : x - Step 2: Convert to fraction form
664,579.80/996,869.70 = 664,579.80/x - Step 3: Cross multiply
664,579.80x = 996,869.70 × 664,579.80 - Step 4: Simplify right side
664,579.80x = 662,499,465,852.06 - Step 5: Solve for x
x = 662,499,465,852.06/664,579.80 - Step 6: Final answer
x = 996,869.70
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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.