Finding the Fourth Proportional to 1,809,992.21, 2,712,538.86 and 687,448.85
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Solution
The fourth proportional to 1,809,992.21, 2,712,538.86 and 687,448.85 is: 1,030,242.95
Step by Step Solution
- Step 1: Write the proportion equation
1,809,992.21 : 2,712,538.86 = 687,448.85 : x - Step 2: Convert to fraction form
1,809,992.21/2,712,538.86 = 687,448.85/x - Step 3: Cross multiply
1,809,992.21x = 2,712,538.86 × 687,448.85 - Step 4: Simplify right side
1,809,992.21x = 1,864,731,706,324.62 - Step 5: Solve for x
x = 1,864,731,706,324.62/1,809,992.21 - Step 6: Final answer
x = 1,030,242.95
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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.