Finding the Fourth Proportional to 664,552.68, 996,478.72 and 290,138.28
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Solution
The fourth proportional to 664,552.68, 996,478.72 and 290,138.28 is: 435,054.48
Step by Step Solution
- Step 1: Write the proportion equation
664,552.68 : 996,478.72 = 290,138.28 : x - Step 2: Convert to fraction form
664,552.68/996,478.72 = 290,138.28/x - Step 3: Cross multiply
664,552.68x = 996,478.72 × 290,138.28 - Step 4: Simplify right side
664,552.68x = 289,116,621,877.40 - Step 5: Solve for x
x = 289,116,621,877.40/664,552.68 - Step 6: Final answer
x = 435,054.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.