Finding the Fourth Proportional to 1,354,914.09, 1,869,646.73 and 782,138.79
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Solution
The fourth proportional to 1,354,914.09, 1,869,646.73 and 782,138.79 is: 1,079,273.76
Step by Step Solution
- Step 1: Write the proportion equation
1,354,914.09 : 1,869,646.73 = 782,138.79 : x - Step 2: Convert to fraction form
1,354,914.09/1,869,646.73 = 782,138.79/x - Step 3: Cross multiply
1,354,914.09x = 1,869,646.73 × 782,138.79 - Step 4: Simplify right side
1,354,914.09x = 1,462,323,227,218.96 - Step 5: Solve for x
x = 1,462,323,227,218.96/1,354,914.09 - Step 6: Final answer
x = 1,079,273.76
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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.