Finding the Fourth Proportional to 870,261.12, 1,305,406.08 and 239,171.04
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Solution
The fourth proportional to 870,261.12, 1,305,406.08 and 239,171.04 is: 358,760.52
Step by Step Solution
- Step 1: Write the proportion equation
870,261.12 : 1,305,406.08 = 239,171.04 : x - Step 2: Convert to fraction form
870,261.12/1,305,406.08 = 239,171.04/x - Step 3: Cross multiply
870,261.12x = 1,305,406.08 × 239,171.04 - Step 4: Simplify right side
870,261.12x = 312,215,329,775.92 - Step 5: Solve for x
x = 312,215,329,775.92/870,261.12 - Step 6: Final answer
x = 358,760.52
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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.