Finding the Fourth Proportional to 1,791,505.84, 2,688,119.18 and 1,117,414.12
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Solution
The fourth proportional to 1,791,505.84, 2,688,119.18 and 1,117,414.12 is: 1,676,657.85
Step by Step Solution
- Step 1: Write the proportion equation
1,791,505.84 : 2,688,119.18 = 1,117,414.12 : x - Step 2: Convert to fraction form
1,791,505.84/2,688,119.18 = 1,117,414.12/x - Step 3: Cross multiply
1,791,505.84x = 2,688,119.18 × 1,117,414.12 - Step 4: Simplify right side
1,791,505.84x = 3,003,742,327,974.82 - Step 5: Solve for x
x = 3,003,742,327,974.82/1,791,505.84 - Step 6: Final answer
x = 1,676,657.85
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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.