Finding the Fourth Proportional to 415,634.97, 623,258.70 and 215,901.74
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Solution
The fourth proportional to 415,634.97, 623,258.70 and 215,901.74 is: 323,751.96
Step by Step Solution
- Step 1: Write the proportion equation
415,634.97 : 623,258.70 = 215,901.74 : x - Step 2: Convert to fraction form
415,634.97/623,258.70 = 215,901.74/x - Step 3: Cross multiply
415,634.97x = 623,258.70 × 215,901.74 - Step 4: Simplify right side
415,634.97x = 134,562,634,683.84 - Step 5: Solve for x
x = 134,562,634,683.84/415,634.97 - Step 6: Final answer
x = 323,751.96
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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.