Finding the Fourth Proportional to 1,214,435.13, 1,820,926.94 and 415,451.13
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Solution
The fourth proportional to 1,214,435.13, 1,820,926.94 and 415,451.13 is: 622,928.42
Step by Step Solution
- Step 1: Write the proportion equation
1,214,435.13 : 1,820,926.94 = 415,451.13 : x - Step 2: Convert to fraction form
1,214,435.13/1,820,926.94 = 415,451.13/x - Step 3: Cross multiply
1,214,435.13x = 1,820,926.94 × 415,451.13 - Step 4: Simplify right side
1,214,435.13x = 756,506,152,793.19 - Step 5: Solve for x
x = 756,506,152,793.19/1,214,435.13 - Step 6: Final answer
x = 622,928.42
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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.