Finding the Fourth Proportional to 1,648,143.99, 2,269,151.37 and 1,285,101.99
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Solution
The fourth proportional to 1,648,143.99, 2,269,151.37 and 1,285,101.99 is: 1,769,318.07
Step by Step Solution
- Step 1: Write the proportion equation
1,648,143.99 : 2,269,151.37 = 1,285,101.99 : x - Step 2: Convert to fraction form
1,648,143.99/2,269,151.37 = 1,285,101.99/x - Step 3: Cross multiply
1,648,143.99x = 2,269,151.37 × 1,285,101.99 - Step 4: Simplify right side
1,648,143.99x = 2,916,090,941,198.23 - Step 5: Solve for x
x = 2,916,090,941,198.23/1,648,143.99 - Step 6: Final answer
x = 1,769,318.07
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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.