Finding the Fourth Proportional to 2,104,996.70, 2,905,642.38 and 1,245,555.11
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Solution
The fourth proportional to 2,104,996.70, 2,905,642.38 and 1,245,555.11 is: 1,719,308.02
Step by Step Solution
- Step 1: Write the proportion equation
2,104,996.70 : 2,905,642.38 = 1,245,555.11 : x - Step 2: Convert to fraction form
2,104,996.70/2,905,642.38 = 1,245,555.11/x - Step 3: Cross multiply
2,104,996.70x = 2,905,642.38 × 1,245,555.11 - Step 4: Simplify right side
2,104,996.70x = 3,619,137,699,713.35 - Step 5: Solve for x
x = 3,619,137,699,713.35/2,104,996.70 - Step 6: Final answer
x = 1,719,308.02
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1.5x scale
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.