Finding the Fourth Proportional to 1,640,750.76, 2,264,236.50 and 905,705.48
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Solution
The fourth proportional to 1,640,750.76, 2,264,236.50 and 905,705.48 is: 1,249,873.81
Step by Step Solution
- Step 1: Write the proportion equation
1,640,750.76 : 2,264,236.50 = 905,705.48 : x - Step 2: Convert to fraction form
1,640,750.76/2,264,236.50 = 905,705.48/x - Step 3: Cross multiply
1,640,750.76x = 2,264,236.50 × 905,705.48 - Step 4: Simplify right side
1,640,750.76x = 2,050,731,406,066.02 - Step 5: Solve for x
x = 2,050,731,406,066.02/1,640,750.76 - Step 6: Final answer
x = 1,249,873.81
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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.