Finding the Fourth Proportional to 957,356.96, 1,321,113.71 and 521,765.06
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Solution
The fourth proportional to 957,356.96, 1,321,113.71 and 521,765.06 is: 720,014.59
Step by Step Solution
- Step 1: Write the proportion equation
957,356.96 : 1,321,113.71 = 521,765.06 : x - Step 2: Convert to fraction form
957,356.96/1,321,113.71 = 521,765.06/x - Step 3: Cross multiply
957,356.96x = 1,321,113.71 × 521,765.06 - Step 4: Simplify right side
957,356.96x = 689,310,976,295.08 - Step 5: Solve for x
x = 689,310,976,295.08/957,356.96 - Step 6: Final answer
x = 720,014.59
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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.