Finding the Fourth Proportional to 1,559,142.40, 2,335,214.40 and 1,279,206.40
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Solution
The fourth proportional to 1,559,142.40, 2,335,214.40 and 1,279,206.40 is: 1,915,938.66
Step by Step Solution
- Step 1: Write the proportion equation
1,559,142.40 : 2,335,214.40 = 1,279,206.40 : x - Step 2: Convert to fraction form
1,559,142.40/2,335,214.40 = 1,279,206.40/x - Step 3: Cross multiply
1,559,142.40x = 2,335,214.40 × 1,279,206.40 - Step 4: Simplify right side
1,559,142.40x = 2,987,221,205,852.16 - Step 5: Solve for x
x = 2,987,221,205,852.16/1,559,142.40 - Step 6: Final answer
x = 1,915,938.66
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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.