Finding the Fourth Proportional to 870,278.43, 1,305,384.84 and 239,175.84
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Solution
The fourth proportional to 870,278.43, 1,305,384.84 and 239,175.84 is: 358,754.74
Step by Step Solution
- Step 1: Write the proportion equation
870,278.43 : 1,305,384.84 = 239,175.84 : x - Step 2: Convert to fraction form
870,278.43/1,305,384.84 = 239,175.84/x - Step 3: Cross multiply
870,278.43x = 1,305,384.84 × 239,175.84 - Step 4: Simplify right side
870,278.43x = 312,216,515,630.27 - Step 5: Solve for x
x = 312,216,515,630.27/870,278.43 - Step 6: Final answer
x = 358,754.74
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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.