Finding the Fourth Proportional to 1,412,267.28, 2,117,206.80 and 612,947.94
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Solution
The fourth proportional to 1,412,267.28, 2,117,206.80 and 612,947.94 is: 918,903.64
Step by Step Solution
- Step 1: Write the proportion equation
1,412,267.28 : 2,117,206.80 = 612,947.94 : x - Step 2: Convert to fraction form
1,412,267.28/2,117,206.80 = 612,947.94/x - Step 3: Cross multiply
1,412,267.28x = 2,117,206.80 × 612,947.94 - Step 4: Simplify right side
1,412,267.28x = 1,297,737,546,613.99 - Step 5: Solve for x
x = 1,297,737,546,613.99/1,412,267.28 - Step 6: Final answer
x = 918,903.64
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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.