Finding the Fourth Proportional to 787,731.17, 1,087,063.49 and 430,035.17
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Solution
The fourth proportional to 787,731.17, 1,087,063.49 and 430,035.17 is: 593,445.52
Step by Step Solution
- Step 1: Write the proportion equation
787,731.17 : 1,087,063.49 = 430,035.17 : x - Step 2: Convert to fraction form
787,731.17/1,087,063.49 = 430,035.17/x - Step 3: Cross multiply
787,731.17x = 1,087,063.49 × 430,035.17 - Step 4: Simplify right side
787,731.17x = 467,475,530,572.77 - Step 5: Solve for x
x = 467,475,530,572.77/787,731.17 - Step 6: Final answer
x = 593,445.52
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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.