Finding the Fourth Proportional to 458,498.63, 686,138.94 and 368,319.75
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Solution
The fourth proportional to 458,498.63, 686,138.94 and 368,319.75 is: 551,187.09
Step by Step Solution
- Step 1: Write the proportion equation
458,498.63 : 686,138.94 = 368,319.75 : x - Step 2: Convert to fraction form
458,498.63/686,138.94 = 368,319.75/x - Step 3: Cross multiply
458,498.63x = 686,138.94 × 368,319.75 - Step 4: Simplify right side
458,498.63x = 252,718,522,846.07 - Step 5: Solve for x
x = 252,718,522,846.07/458,498.63 - Step 6: Final answer
x = 551,187.09
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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.