Finding the Fourth Proportional to 1,972,735.21, 2,722,378.58 and 1,101,565.63
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Solution
The fourth proportional to 1,972,735.21, 2,722,378.58 and 1,101,565.63 is: 1,520,162.80
Step by Step Solution
- Step 1: Write the proportion equation
1,972,735.21 : 2,722,378.58 = 1,101,565.63 : x - Step 2: Convert to fraction form
1,972,735.21/2,722,378.58 = 1,101,565.63/x - Step 3: Cross multiply
1,972,735.21x = 2,722,378.58 × 1,101,565.63 - Step 4: Simplify right side
1,972,735.21x = 2,998,878,675,576.21 - Step 5: Solve for x
x = 2,998,878,675,576.21/1,972,735.21 - Step 6: Final answer
x = 1,520,162.80
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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.