Finding the Fourth Proportional to 1,688,535.14, 2,330,179.21 and 914,165.94
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Solution
The fourth proportional to 1,688,535.14, 2,330,179.21 and 914,165.94 is: 1,261,549.38
Step by Step Solution
- Step 1: Write the proportion equation
1,688,535.14 : 2,330,179.21 = 914,165.94 : x - Step 2: Convert to fraction form
1,688,535.14/2,330,179.21 = 914,165.94/x - Step 3: Cross multiply
1,688,535.14x = 2,330,179.21 × 914,165.94 - Step 4: Simplify right side
1,688,535.14x = 2,130,170,457,518.23 - Step 5: Solve for x
x = 2,130,170,457,518.23/1,688,535.14 - Step 6: Final answer
x = 1,261,549.38
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1.5x scale
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.