Finding the Fourth Proportional to 790,449.36, 1,185,691.68 and 285,051.12
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Solution
The fourth proportional to 790,449.36, 1,185,691.68 and 285,051.12 is: 427,583.04
Step by Step Solution
- Step 1: Write the proportion equation
790,449.36 : 1,185,691.68 = 285,051.12 : x - Step 2: Convert to fraction form
790,449.36/1,185,691.68 = 285,051.12/x - Step 3: Cross multiply
790,449.36x = 1,185,691.68 × 285,051.12 - Step 4: Simplify right side
790,449.36x = 337,982,741,358.68 - Step 5: Solve for x
x = 337,982,741,358.68/790,449.36 - Step 6: Final answer
x = 427,583.04
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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.