Finding the Fourth Proportional to 628,689.36, 942,505.05 and 273,435.81
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Solution
The fourth proportional to 628,689.36, 942,505.05 and 273,435.81 is: 409,923.65
Step by Step Solution
- Step 1: Write the proportion equation
628,689.36 : 942,505.05 = 273,435.81 : x - Step 2: Convert to fraction form
628,689.36/942,505.05 = 273,435.81/x - Step 3: Cross multiply
628,689.36x = 942,505.05 × 273,435.81 - Step 4: Simplify right side
628,689.36x = 257,714,632,801.23 - Step 5: Solve for x
x = 257,714,632,801.23/628,689.36 - Step 6: Final answer
x = 409,923.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.