Finding the Fourth Proportional to 1,958,778.84, 2,703,378.58 and 1,099,386.12
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Solution
The fourth proportional to 1,958,778.84, 2,703,378.58 and 1,099,386.12 is: 1,517,300.90
Step by Step Solution
- Step 1: Write the proportion equation
1,958,778.84 : 2,703,378.58 = 1,099,386.12 : x - Step 2: Convert to fraction form
1,958,778.84/2,703,378.58 = 1,099,386.12/x - Step 3: Cross multiply
1,958,778.84x = 2,703,378.58 × 1,099,386.12 - Step 4: Simplify right side
1,958,778.84x = 2,972,056,887,957.31 - Step 5: Solve for x
x = 2,972,056,887,957.31/1,958,778.84 - Step 6: Final answer
x = 1,517,300.90
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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.