Finding the Fourth Proportional to 3,878,257.44, 5,346,992.52 and 3,177,934.32
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Solution
The fourth proportional to 3,878,257.44, 5,346,992.52 and 3,177,934.32 is: 4,381,449.99
Step by Step Solution
- Step 1: Write the proportion equation
3,878,257.44 : 5,346,992.52 = 3,177,934.32 : x - Step 2: Convert to fraction form
3,878,257.44/5,346,992.52 = 3,177,934.32/x - Step 3: Cross multiply
3,878,257.44x = 5,346,992.52 × 3,177,934.32 - Step 4: Simplify right side
3,878,257.44x = 16,992,391,038,091.28 - Step 5: Solve for x
x = 16,992,391,038,091.28/3,878,257.44 - Step 6: Final answer
x = 4,381,449.99
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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.