Finding the Fourth Proportional to 859,278.97, 1,289,418 and 353,890.81
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Solution
The fourth proportional to 859,278.97, 1,289,418 and 353,890.81 is: 531,041.95
Step by Step Solution
- Step 1: Write the proportion equation
859,278.97 : 1,289,418 = 353,890.81 : x - Step 2: Convert to fraction form
859,278.97/1,289,418 = 353,890.81/x - Step 3: Cross multiply
859,278.97x = 1,289,418 × 353,890.81 - Step 4: Simplify right side
859,278.97x = 456,313,180,448.58 - Step 5: Solve for x
x = 456,313,180,448.58/859,278.97 - Step 6: Final answer
x = 531,041.95
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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.