Finding the Fourth Proportional to 684,432.87, 944,523.63 and 378,493.44
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Solution
The fourth proportional to 684,432.87, 944,523.63 and 378,493.44 is: 522,324.41
Step by Step Solution
- Step 1: Write the proportion equation
684,432.87 : 944,523.63 = 378,493.44 : x - Step 2: Convert to fraction form
684,432.87/944,523.63 = 378,493.44/x - Step 3: Cross multiply
684,432.87x = 944,523.63 × 378,493.44 - Step 4: Simplify right side
684,432.87x = 357,495,997,879.99 - Step 5: Solve for x
x = 357,495,997,879.99/684,432.87 - Step 6: Final answer
x = 522,324.41
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1.5x scale
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.