Finding the Fourth Proportional to 672,756.96, 928,539.12 and 386,473.44
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Solution
The fourth proportional to 672,756.96, 928,539.12 and 386,473.44 is: 533,410.62
Step by Step Solution
- Step 1: Write the proportion equation
672,756.96 : 928,539.12 = 386,473.44 : x - Step 2: Convert to fraction form
672,756.96/928,539.12 = 386,473.44/x - Step 3: Cross multiply
672,756.96x = 928,539.12 × 386,473.44 - Step 4: Simplify right side
672,756.96x = 358,855,707,880.97 - Step 5: Solve for x
x = 358,855,707,880.97/672,756.96 - Step 6: Final answer
x = 533,410.62
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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.