Finding the Fourth Proportional to 1,938,735.84, 2,675,543.76 and 1,079,350.68
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Solution
The fourth proportional to 1,938,735.84, 2,675,543.76 and 1,079,350.68 is: 1,489,553.10
Step by Step Solution
- Step 1: Write the proportion equation
1,938,735.84 : 2,675,543.76 = 1,079,350.68 : x - Step 2: Convert to fraction form
1,938,735.84/2,675,543.76 = 1,079,350.68/x - Step 3: Cross multiply
1,938,735.84x = 2,675,543.76 × 1,079,350.68 - Step 4: Simplify right side
1,938,735.84x = 2,887,849,976,725.76 - Step 5: Solve for x
x = 2,887,849,976,725.76/1,938,735.84 - Step 6: Final answer
x = 1,489,553.10
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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.