Finding the Fourth Proportional to 1,903,512.72, 2,627,435.68 and 1,224,449.28
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Solution
The fourth proportional to 1,903,512.72, 2,627,435.68 and 1,224,449.28 is: 1,690,118.32
Step by Step Solution
- Step 1: Write the proportion equation
1,903,512.72 : 2,627,435.68 = 1,224,449.28 : x - Step 2: Convert to fraction form
1,903,512.72/2,627,435.68 = 1,224,449.28/x - Step 3: Cross multiply
1,903,512.72x = 2,627,435.68 × 1,224,449.28 - Step 4: Simplify right side
1,903,512.72x = 3,217,161,726,622.31 - Step 5: Solve for x
x = 3,217,161,726,622.31/1,903,512.72 - Step 6: Final answer
x = 1,690,118.32
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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.