Finding the Fourth Proportional to 658,652.76, 908,917.55 and 372,166.70
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Solution
The fourth proportional to 658,652.76, 908,917.55 and 372,166.70 is: 513,576.90
Step by Step Solution
- Step 1: Write the proportion equation
658,652.76 : 908,917.55 = 372,166.70 : x - Step 2: Convert to fraction form
658,652.76/908,917.55 = 372,166.70/x - Step 3: Cross multiply
658,652.76x = 908,917.55 × 372,166.70 - Step 4: Simplify right side
658,652.76x = 338,268,841,022.46 - Step 5: Solve for x
x = 338,268,841,022.46/658,652.76 - Step 6: Final answer
x = 513,576.90
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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.