Finding the Fourth Proportional to 1,815,588.68, 2,505,529.67 and 999,821.21
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Solution
The fourth proportional to 1,815,588.68, 2,505,529.67 and 999,821.21 is: 1,379,762.79
Step by Step Solution
- Step 1: Write the proportion equation
1,815,588.68 : 2,505,529.67 = 999,821.21 : x - Step 2: Convert to fraction form
1,815,588.68/2,505,529.67 = 999,821.21/x - Step 3: Cross multiply
1,815,588.68x = 2,505,529.67 × 999,821.21 - Step 4: Simplify right side
1,815,588.68x = 2,505,081,688,823.55 - Step 5: Solve for x
x = 2,505,081,688,823.55/1,815,588.68 - Step 6: Final answer
x = 1,379,762.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.