Finding the Fourth Proportional to 2,329,791.08, 3,215,215.14 and 1,311,261.80
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Solution
The fourth proportional to 2,329,791.08, 3,215,215.14 and 1,311,261.80 is: 1,809,599.51
Step by Step Solution
- Step 1: Write the proportion equation
2,329,791.08 : 3,215,215.14 = 1,311,261.80 : x - Step 2: Convert to fraction form
2,329,791.08/3,215,215.14 = 1,311,261.80/x - Step 3: Cross multiply
2,329,791.08x = 3,215,215.14 × 1,311,261.80 - Step 4: Simplify right side
2,329,791.08x = 4,215,988,791,863.65 - Step 5: Solve for x
x = 4,215,988,791,863.65/2,329,791.08 - Step 6: Final answer
x = 1,809,599.51
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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.