Finding the Fourth Proportional to 1,970,779.98, 2,719,674.99 and 1,065,361.98
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Solution
The fourth proportional to 1,970,779.98, 2,719,674.99 and 1,065,361.98 is: 1,470,198.79
Step by Step Solution
- Step 1: Write the proportion equation
1,970,779.98 : 2,719,674.99 = 1,065,361.98 : x - Step 2: Convert to fraction form
1,970,779.98/2,719,674.99 = 1,065,361.98/x - Step 3: Cross multiply
1,970,779.98x = 2,719,674.99 × 1,065,361.98 - Step 4: Simplify right side
1,970,779.98x = 2,897,438,332,302.88 - Step 5: Solve for x
x = 2,897,438,332,302.88/1,970,779.98 - Step 6: Final answer
x = 1,470,198.79
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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.