Finding the Fourth Proportional to 4,788,914.40, 7,183,352.70 and 1,423,121.40
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Solution
The fourth proportional to 4,788,914.40, 7,183,352.70 and 1,423,121.40 is: 2,134,676.48
Step by Step Solution
- Step 1: Write the proportion equation
4,788,914.40 : 7,183,352.70 = 1,423,121.40 : x - Step 2: Convert to fraction form
4,788,914.40/7,183,352.70 = 1,423,121.40/x - Step 3: Cross multiply
4,788,914.40x = 7,183,352.70 × 1,423,121.40 - Step 4: Simplify right side
4,788,914.40x = 10,222,782,951,117.78 - Step 5: Solve for x
x = 10,222,782,951,117.78/4,788,914.40 - Step 6: Final answer
x = 2,134,676.48
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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.