Finding the Fourth Proportional to 1,188,800.99, 1,783,259.81 and 478,733.12
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Solution
The fourth proportional to 1,188,800.99, 1,783,259.81 and 478,733.12 is: 718,123.17
Step by Step Solution
- Step 1: Write the proportion equation
1,188,800.99 : 1,783,259.81 = 478,733.12 : x - Step 2: Convert to fraction form
1,188,800.99/1,783,259.81 = 478,733.12/x - Step 3: Cross multiply
1,188,800.99x = 1,783,259.81 × 478,733.12 - Step 4: Simplify right side
1,188,800.99x = 853,705,530,218.24 - Step 5: Solve for x
x = 853,705,530,218.24/1,188,800.99 - Step 6: Final answer
x = 718,123.17
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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.