Finding the Fourth Proportional to 2,112,447.32, 2,915,125.98 and 1,206,971
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Solution
The fourth proportional to 2,112,447.32, 2,915,125.98 and 1,206,971 is: 1,665,590.66
Step by Step Solution
- Step 1: Write the proportion equation
2,112,447.32 : 2,915,125.98 = 1,206,971 : x - Step 2: Convert to fraction form
2,112,447.32/2,915,125.98 = 1,206,971/x - Step 3: Cross multiply
2,112,447.32x = 2,915,125.98 × 1,206,971 - Step 4: Simplify right side
2,112,447.32x = 3,518,472,519,206.58 - Step 5: Solve for x
x = 3,518,472,519,206.58/2,112,447.32 - Step 6: Final answer
x = 1,665,590.66
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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.