Finding the Fourth Proportional to 681,115.79, 1,021,670.85 and 207,799.58
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Solution
The fourth proportional to 681,115.79, 1,021,670.85 and 207,799.58 is: 311,698.51
Step by Step Solution
- Step 1: Write the proportion equation
681,115.79 : 1,021,670.85 = 207,799.58 : x - Step 2: Convert to fraction form
681,115.79/1,021,670.85 = 207,799.58/x - Step 3: Cross multiply
681,115.79x = 1,021,670.85 × 207,799.58 - Step 4: Simplify right side
681,115.79x = 212,302,773,528.24 - Step 5: Solve for x
x = 212,302,773,528.24/681,115.79 - Step 6: Final answer
x = 311,698.51
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1.5x scale
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.