Finding the Fourth Proportional to 1,537,395.15, 2,122,490.49 and 1,021,847.97
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Solution
The fourth proportional to 1,537,395.15, 2,122,490.49 and 1,021,847.97 is: 1,410,738.55
Step by Step Solution
- Step 1: Write the proportion equation
1,537,395.15 : 2,122,490.49 = 1,021,847.97 : x - Step 2: Convert to fraction form
1,537,395.15/2,122,490.49 = 1,021,847.97/x - Step 3: Cross multiply
1,537,395.15x = 2,122,490.49 × 1,021,847.97 - Step 4: Simplify right side
1,537,395.15x = 2,168,862,598,550.81 - Step 5: Solve for x
x = 2,168,862,598,550.81/1,537,395.15 - Step 6: Final answer
x = 1,410,738.55
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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.