Finding the Fourth Proportional to 1,419,930.99, 2,130,520.86 and 745,855.74
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Solution
The fourth proportional to 1,419,930.99, 2,130,520.86 and 745,855.74 is: 1,119,111.58
Step by Step Solution
- Step 1: Write the proportion equation
1,419,930.99 : 2,130,520.86 = 745,855.74 : x - Step 2: Convert to fraction form
1,419,930.99/2,130,520.86 = 745,855.74/x - Step 3: Cross multiply
1,419,930.99x = 2,130,520.86 × 745,855.74 - Step 4: Simplify right side
1,419,930.99x = 1,589,061,212,620.74 - Step 5: Solve for x
x = 1,589,061,212,620.74/1,419,930.99 - Step 6: Final answer
x = 1,119,111.58
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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.