Finding the Fourth Proportional to 2,787,920.14, 4,179,987.74 and 1,418,327.80
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Solution
The fourth proportional to 2,787,920.14, 4,179,987.74 and 1,418,327.80 is: 2,126,528.92
Step by Step Solution
- Step 1: Write the proportion equation
2,787,920.14 : 4,179,987.74 = 1,418,327.80 : x - Step 2: Convert to fraction form
2,787,920.14/4,179,987.74 = 1,418,327.80/x - Step 3: Cross multiply
2,787,920.14x = 4,179,987.74 × 1,418,327.80 - Step 4: Simplify right side
2,787,920.14x = 5,928,592,815,301.17 - Step 5: Solve for x
x = 5,928,592,815,301.17/2,787,920.14 - Step 6: Final answer
x = 2,126,528.92
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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.