Finding the Fourth Proportional to 781,452.07, 1,078,449.05 and 437,284.99
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Solution
The fourth proportional to 781,452.07, 1,078,449.05 and 437,284.99 is: 603,478.58
Step by Step Solution
- Step 1: Write the proportion equation
781,452.07 : 1,078,449.05 = 437,284.99 : x - Step 2: Convert to fraction form
781,452.07/1,078,449.05 = 437,284.99/x - Step 3: Cross multiply
781,452.07x = 1,078,449.05 × 437,284.99 - Step 4: Simplify right side
781,452.07x = 471,589,582,044.76 - Step 5: Solve for x
x = 471,589,582,044.76/781,452.07 - Step 6: Final answer
x = 603,478.58
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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.