Finding the Fourth Proportional to 681,232.60, 1,021,848.90 and 207,917.20
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Solution
The fourth proportional to 681,232.60, 1,021,848.90 and 207,917.20 is: 311,875.80
Step by Step Solution
- Step 1: Write the proportion equation
681,232.60 : 1,021,848.90 = 207,917.20 : x - Step 2: Convert to fraction form
681,232.60/1,021,848.90 = 207,917.20/x - Step 3: Cross multiply
681,232.60x = 1,021,848.90 × 207,917.20 - Step 4: Simplify right side
681,232.60x = 212,459,962,111.08 - Step 5: Solve for x
x = 212,459,962,111.08/681,232.60 - Step 6: Final answer
x = 311,875.80
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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.