Finding the Fourth Proportional to 2,113,327.36, 2,916,391.77 and 1,207,928.80
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Solution
The fourth proportional to 2,113,327.36, 2,916,391.77 and 1,207,928.80 is: 1,666,941.75
Step by Step Solution
- Step 1: Write the proportion equation
2,113,327.36 : 2,916,391.77 = 1,207,928.80 : x - Step 2: Convert to fraction form
2,113,327.36/2,916,391.77 = 1,207,928.80/x - Step 3: Cross multiply
2,113,327.36x = 2,916,391.77 × 1,207,928.80 - Step 4: Simplify right side
2,113,327.36x = 3,522,793,611,065.98 - Step 5: Solve for x
x = 3,522,793,611,065.98/2,113,327.36 - Step 6: Final answer
x = 1,666,941.75
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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.