Finding the Fourth Proportional to 987,278.63, 1,480,917.94 and 239,324.63
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Solution
The fourth proportional to 987,278.63, 1,480,917.94 and 239,324.63 is: 358,986.94
Step by Step Solution
- Step 1: Write the proportion equation
987,278.63 : 1,480,917.94 = 239,324.63 : x - Step 2: Convert to fraction form
987,278.63/1,480,917.94 = 239,324.63/x - Step 3: Cross multiply
987,278.63x = 1,480,917.94 × 239,324.63 - Step 4: Simplify right side
987,278.63x = 354,420,130,047.96 - Step 5: Solve for x
x = 354,420,130,047.96/987,278.63 - Step 6: Final answer
x = 358,986.94
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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.