Finding the Fourth Proportional to 1,557,112.68, 2,149,207.02 and 878,442.84
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Solution
The fourth proportional to 1,557,112.68, 2,149,207.02 and 878,442.84 is: 1,212,472.00
Step by Step Solution
- Step 1: Write the proportion equation
1,557,112.68 : 2,149,207.02 = 878,442.84 : x - Step 2: Convert to fraction form
1,557,112.68/2,149,207.02 = 878,442.84/x - Step 3: Cross multiply
1,557,112.68x = 2,149,207.02 × 878,442.84 - Step 4: Simplify right side
1,557,112.68x = 1,887,955,518,396.74 - Step 5: Solve for x
x = 1,887,955,518,396.74/1,557,112.68 - Step 6: Final answer
x = 1,212,472.00
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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.