Finding the Fourth Proportional to 787,733.92, 1,087,067.28 and 430,037.92
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Solution
The fourth proportional to 787,733.92, 1,087,067.28 and 430,037.92 is: 593,449.31
Step by Step Solution
- Step 1: Write the proportion equation
787,733.92 : 1,087,067.28 = 430,037.92 : x - Step 2: Convert to fraction form
787,733.92/1,087,067.28 = 430,037.92/x - Step 3: Cross multiply
787,733.92x = 1,087,067.28 × 430,037.92 - Step 4: Simplify right side
787,733.92x = 467,480,151,991.26 - Step 5: Solve for x
x = 467,480,151,991.26/787,733.92 - Step 6: Final answer
x = 593,449.31
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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.